[issue42130] AsyncIO's wait_for can hide cancellation in a rare race condition

[Sam Bull]

Change by Sam Bull <m6f6g7 at sambull.org>:


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nosy: +dreamsorcerer
nosy_count: 8.0 -> 9.0
pull_requests: +26587
pull_request: https://github.com/python/cpython/pull/28149

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42130>
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