[3.13] gh-156196: Fix a failed assignment to a PyMemberDef attribute changing its value - #156197
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serhiy-storchaka merged 1 commit intoAug 21, 2026
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…hanging its value PyMember_SetOne() stored the result of the conversion before checking it for an error.
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PyMember_SetOne() stored the result of the conversion before checking it for an error, so a failed assignment left a garbage value in the attribute. The value is now stored after the check, like in 3.14 (GH-123211).