[3.13] gh-131045: [Enum] fix flag containment checks when using values (GH-131053)#131167

picnixz merged 1 commit intopython:3.13python/cpython:3.13from

miss-islington:backport-17d06ae-3.13miss-islington/cpython:backport-17d06ae-3.13Copy head branch name to clipboard