gh-120321: Add missing "return false" in gen_try_set_executing#144291
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We didn't catch this because of a combination of: 1) falling through to the if-statement below works 2) we only specialized FOR_ITER_GEN for uniquely referenced generators, so we didn't trigger the non-thread-safe behavior.
mpage approved these changes Jan 27, 2026
colesbury merged commit 6b45381 into python:main 61 checks passed
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We didn't catch this because of a combination of:
falling through to the if-statement below works
we only specialized FOR_ITER_GEN for uniquely referenced generators,
so we didn't trigger the non-thread-safe behavior.