diff --git a/descriptions-next/api.github.com/api.github.com.2022-11-28.json b/descriptions-next/api.github.com/api.github.com.2022-11-28.json
index 1db87604e6..506136126c 100644
--- a/descriptions-next/api.github.com/api.github.com.2022-11-28.json
+++ b/descriptions-next/api.github.com/api.github.com.2022-11-28.json
@@ -122808,7 +122808,10 @@
         "type": "object",
         "properties": {
           "sha": {
-            "type": "string",
+            "type": [
+              "string",
+              "null"
+            ],
             "examples": [
               "bbcd538c8e72b8c175046e27cc8f907076331401"
             ]
diff --git a/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml b/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
index 819f6d12b8..c66b553778 100644
--- a/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
+++ b/descriptions-next/api.github.com/api.github.com.2022-11-28.yaml
@@ -89096,7 +89096,9 @@ components:
       type: object
       properties:
         sha:
-          type: string
+          type:
+          - string
+          - 'null'
           examples:
           - bbcd538c8e72b8c175046e27cc8f907076331401
         filename:
diff --git a/descriptions-next/api.github.com/api.github.com.json b/descriptions-next/api.github.com/api.github.com.json
index 1db87604e6..506136126c 100644
--- a/descriptions-next/api.github.com/api.github.com.json
+++ b/descriptions-next/api.github.com/api.github.com.json
@@ -122808,7 +122808,10 @@
         "type": "object",
         "properties": {
           "sha": {
-            "type": "string",
+            "type": [
+              "string",
+              "null"
+            ],
             "examples": [
               "bbcd538c8e72b8c175046e27cc8f907076331401"
             ]
diff --git a/descriptions-next/api.github.com/api.github.com.yaml b/descriptions-next/api.github.com/api.github.com.yaml
index 819f6d12b8..c66b553778 100644
--- a/descriptions-next/api.github.com/api.github.com.yaml
+++ b/descriptions-next/api.github.com/api.github.com.yaml
@@ -89096,7 +89096,9 @@ components:
       type: object
       properties:
         sha:
-          type: string
+          type:
+          - string
+          - 'null'
           examples:
           - bbcd538c8e72b8c175046e27cc8f907076331401
         filename:
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
index a3e3f267b9..87d4c66a98 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.json
@@ -242268,7 +242268,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -262897,7 +262900,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -304092,7 +304098,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -311085,7 +311094,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -317520,7 +317532,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -318237,7 +318252,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -318986,7 +319004,10 @@
                               "type": "object",
                               "properties": {
                                 "sha": {
-                                  "type": "string",
+                                  "type": [
+                                    "string",
+                                    "null"
+                                  ],
                                   "examples": [
                                     "bbcd538c8e72b8c175046e27cc8f907076331401"
                                   ]
@@ -319099,7 +319120,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -460419,7 +460443,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -498947,7 +498974,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -499229,7 +499259,10 @@
                     "type": "object",
                     "properties": {
                       "sha": {
-                        "type": "string",
+                        "type": [
+                          "string",
+                          "null"
+                        ],
                         "examples": [
                           "bbcd538c8e72b8c175046e27cc8f907076331401"
                         ]
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
index ad5d07977c..3403618ee9 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.2022-11-28.deref.yaml
@@ -54836,7 +54836,9 @@ paths:
                           type: object
                           properties:
                             sha:
-                              type: string
+                              type:
+                              - string
+                              - 'null'
                               examples:
                               - bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json
index a3e3f267b9..87d4c66a98 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.json
@@ -242268,7 +242268,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -262897,7 +262900,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -304092,7 +304098,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -311085,7 +311094,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -317520,7 +317532,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -318237,7 +318252,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -318986,7 +319004,10 @@
                               "type": "object",
                               "properties": {
                                 "sha": {
-                                  "type": "string",
+                                  "type": [
+                                    "string",
+                                    "null"
+                                  ],
                                   "examples": [
                                     "bbcd538c8e72b8c175046e27cc8f907076331401"
                                   ]
@@ -319099,7 +319120,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -460419,7 +460443,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -498947,7 +498974,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -499229,7 +499259,10 @@
                     "type": "object",
                     "properties": {
                       "sha": {
-                        "type": "string",
+                        "type": [
+                          "string",
+                          "null"
+                        ],
                         "examples": [
                           "bbcd538c8e72b8c175046e27cc8f907076331401"
                         ]
diff --git a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml
index ad5d07977c..3403618ee9 100644
--- a/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml
+++ b/descriptions-next/api.github.com/dereferenced/api.github.com.deref.yaml
@@ -54836,7 +54836,9 @@ paths:
                           type: object
                           properties:
                             sha:
-                              type: string
+                              type:
+                              - string
+                              - 'null'
                               examples:
                               - bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
diff --git a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
index 8ecbe06de4..99fc731685 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -290728,7 +290728,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -311357,7 +311360,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -354831,7 +354837,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -361824,7 +361833,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -368283,7 +368295,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -369000,7 +369015,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -369749,7 +369767,10 @@
                               "type": "object",
                               "properties": {
                                 "sha": {
-                                  "type": "string",
+                                  "type": [
+                                    "string",
+                                    "null"
+                                  ],
                                   "examples": [
                                     "bbcd538c8e72b8c175046e27cc8f907076331401"
                                   ]
@@ -369862,7 +369883,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -513575,7 +513599,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -552143,7 +552170,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -552425,7 +552455,10 @@
                     "type": "object",
                     "properties": {
                       "sha": {
-                        "type": "string",
+                        "type": [
+                          "string",
+                          "null"
+                        ],
                         "examples": [
                           "bbcd538c8e72b8c175046e27cc8f907076331401"
                         ]
diff --git a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index d34538cd65..a7b7b02bbf 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -65527,7 +65527,9 @@ paths:
                           type: object
                           properties:
                             sha:
-                              type: string
+                              type:
+                              - string
+                              - 'null'
                               examples:
                               - bbcd538c8e72b8c175046e27cc8f907076331401
                             filename:
diff --git a/descriptions-next/ghec/dereferenced/ghec.deref.json b/descriptions-next/ghec/dereferenced/ghec.deref.json
index 8ecbe06de4..99fc731685 100644
--- a/descriptions-next/ghec/dereferenced/ghec.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.deref.json
@@ -290728,7 +290728,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -311357,7 +311360,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -354831,7 +354837,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -361824,7 +361833,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -368283,7 +368295,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -369000,7 +369015,10 @@
                             "type": "object",
                             "properties": {
                               "sha": {
-                                "type": "string",
+                                "type": [
+                                  "string",
+                                  "null"
+                                ],
                                 "examples": [
                                   "bbcd538c8e72b8c175046e27cc8f907076331401"
                                 ]
@@ -369749,7 +369767,10 @@
                               "type": "object",
                               "properties": {
                                 "sha": {
-                                  "type": "string",
+                                  "type": [
+                                    "string",
+                                    "null"
+                                  ],
                                   "examples": [
                                     "bbcd538c8e72b8c175046e27cc8f907076331401"
                                   ]
@@ -369862,7 +369883,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -513575,7 +513599,10 @@
                         "type": "object",
                         "properties": {
                           "sha": {
-                            "type": "string",
+                            "type": [
+                              "string",
+                              "null"
+                            ],
                             "examples": [
                               "bbcd538c8e72b8c175046e27cc8f907076331401"
                             ]
@@ -552143,7 +552170,10 @@
                           "type": "object",
                           "properties": {
                             "sha": {
-                              "type": "string",
+                              "type": [
+                                "string",
+                                "null"
+                              ],
                               "examples": [
                                 "bbcd538c8e72b8c175046e27cc8f907076331401"
                               ]
@@ -552425,7 +552455,10 @@
                     "type": "object",
                     "properties": {
                       "sha": {
-                        "type": "string",
+                        "type": [
+                          "string",
+                          "null"
+                        ],
                         "examples": [
                           "bbcd538{"code":"deadline_exceeded","msg":"operation timed out"}