[issue40862] argparse.BooleanOptionalAction accept and silently its the const argument

[Rémi Lapeyre]

Change by Rémi Lapeyre <remi.lapeyre at henki.fr>:


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keywords: +patch
pull_requests: +19848
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/20623

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40862>
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