This PR is stale because it has been open for 30 days with no activity.

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.

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I have made the requested changes; please review again

Thanks for making the requested changes!

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

Is this documented as case insensitive?

@iritkatriel it's not documented as case insensitive but it was already being implemented partly as case insensitive, so this PR is to fix the inconsistency in a way that doesn't break valid old code.

Got it. Please add a news file.

Thanks @akulakov for the PR, and @iritkatriel for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11.
🐍🍒⛏🤖

Sorry, @akulakov and @iritkatriel, I could not cleanly backport this to 3.11 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker d0679c12398579fe9f10e78b6332dded119e4697 3.11

Sorry @akulakov and @iritkatriel, I had trouble checking out the 3.10 backport branch.
Please retry by removing and re-adding the "needs backport to 3.10" label.
Alternatively, you can backport using cherry_picker on the command line.
cherry_picker d0679c12398579fe9f10e78b6332dded119e4697 3.10

@iritkatriel thanks for reviewing!