[3.13] gh-131045: [Enum] fix flag containment checks when using values (GH-131053) #131167
+7
−2
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Check would fail if value would create a pseudo-member, but that member
had not yet been created. We now attempt to create a pseudo-member for
a passed-in value first.
(cherry picked from commit 17d06ae)
Co-authored-by: Ethan Furman ethan@stoneleaf.us
Co-authored-by: Tomas R. tomas.roun8@gmail.com
enum.Flag.__contains__
changed behavior since python 3.12 #131045