[docs] [issue12666] map semantic change not documented in What's New

[Jason R. Coombs]

Jason R. Coombs <jaraco at jaraco.com> added the comment:

I've created a patch to address (1) and (2).

Is there any value in also including this in the 2to3 fixer? I can see that it's a simple translation, but adds complexity to the converted code. I'd be content to go with just a documentation patch. I'll defer to Benjamin or his delegate on whether or not to update 2to3.

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hgrepos: +50
nosy: +benjamin.peterson

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