[issue46262] Enum tests: Error path in `_missing_()` is not covered for `Flag` and `IntFlag`

[Alex Waygood]

Change by Alex Waygood <Alex.Waygood at Gmail.com>:


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title: Error path in `_missing_()` is not covered for `enum.Flag` and `enum.IntFlag` -> Enum tests: Error path in `_missing_()` is not covered for `Flag` and `IntFlag`

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue46262>
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