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Don't narrow unions to Never on isinstance with a TypeVar classinfo - #5261

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Divyansh151005 wants to merge 1 commit into
facebook:mainfrom
Divyansh151005:fix/isinstance-typevar-classinfo-union
Open

Don't narrow unions to Never on isinstance with a TypeVar classinfo#5261
Divyansh151005 wants to merge 1 commit into
facebook:mainfrom
Divyansh151005:fix/isinstance-typevar-classinfo-union

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  1. Commits on Oct 17, 2026