[3.14] gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738)#144626

encukou merged 1 commit intopython:3.14python/cpython:3.14from

miss-islington:backport-a91b5c3-3.14miss-islington/cpython:backport-a91b5c3-3.14Copy head branch name to clipboard