[issue44508] asyncio: document failure mode for loop.call_soon_threadsafe

[meowmeowcat]

Change by meowmeowcat <meowmeowcat1211 at gmail.com>:


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keywords: +patch
nosy: +meowmeowmeowcat
nosy_count: 4.0 -> 5.0
pull_requests: +26174
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/27688

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44508>
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