[3.13] gh-132747: Fix `NULL` dereference when calling a method's `__get__` manually (GH-132772)#132786

JelleZijlstra merged 2 commits intopython:3.13python/cpython:3.13from

ZeroIntensity:backport-fa70bf8-3.13ZeroIntensity/cpython:backport-fa70bf8-3.13Copy head branch name to clipboard