[3.9] gh-92112: Fix crash triggered by an evil custom mro() (GH-92113) - #92372

[3.9] gh-92112: Fix crash triggered by an evil custom mro() (GH-92113)#92372

ambv merged 4 commits into

python:3.9python/cpython:3.9from

JelleZijlstra:backport-85354ed-3.9JelleZijlstra/cpython:backport-85354ed-3.9Copy head branch name to clipboard