[issue38979] ContextVar[str] should return ContextVar class, not None

[Amir Mohamadi]

Change by Amir Mohamadi <amiremohamadi at yahoo.com>:


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keywords: +patch
pull_requests: +16975
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/17497

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38979>
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