gh-118820: Zero-valued flag enum has no name

[nineteendo]

• Issue: Zero-valued flag enum has no name #118820

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📚 Documentation preview 📚: https://cpython-previews--118848.org.readthedocs.build/

[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[nineteendo]

ethanfurman, I have made the requested changes; please review again.

[bedevere-app]

Thanks for making the requested changes!

@ethanfurman: please review the changes made to this pull request.

[TeamSpen210]

It might be more clear to do Perm(0), since it took me a moment to realise the intersection would exclude everything.

[nineteendo]

Note that ...(0) is only used once on the page, ... & ... is used 4 more times. But if Ethan agrees, I'll change it.

[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[nineteendo]

I have made the requested changes; please review again.

[bedevere-app]

Thanks for making the requested changes!

@ethanfurman: please review the changes made to this pull request.