Fix negative type narrowing for isinstance/issubclass with type[T] variable or tuple - #11616

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Henry Su (hsusul) wants to merge 2 commits into

microsoft:mainfrom

hsusul:fix/isinstance-typevar-tuple-negative-narrowing

Commits on Aug 10, 2026

Fix negative type narrowing for isinstance and issubclass when class filter is a type[T] variable or tuple of type[T]
Henry Su (hsusul)
committed
683a924
Fix type[T] filter extraction in getIsInstanceClassTypes and preserve soundness
Henry Su (hsusul)
committed
d023ce2