[issue45997] asyncio.Semaphore waiters deque doesn't work

[Yury Selivanov]

Yury Selivanov <yselivanov at gmail.com> added the comment:

Andrew, the same problem exists in asyncio.Queue which is also critical. Here's how I fixed it in edgedb code base: https://github.com/edgedb/edgedb/blob/08e41341024828df22a01cd690b11fcff00bca5e/edb/server/compiler_pool/queue.py#L51-L74

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<https://bugs.python.org/issue45997>
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