[issue20369] concurrent.futures.wait() blocks forever when given duplicate Futures

[Kumar Aditya]

Change by Kumar Aditya <rahuladitya303 at gmail.com>:


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keywords: +patch
nosy: +kumaraditya303
nosy_count: 4.0 -> 5.0
pull_requests: +28385
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/30168

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue20369>
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