bug#66187: read-file-name unexpected behavior when MUSTMATCH is a function

[Joseph Turner]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> Then I think we should install your patch on the emacs-29 branch,
>> thanks.
>
> Thanks for the vote of confidence, but as Joseph points out, the patch
> isn't actually doing what it says on the tin, so we first have to fix
> it :-)

Here's another potential solution.  While the attached patch seems to
work, I'm not sure that minibuffer-completion-confirm should be checked
in completion--do-completion instead of completion--complete-and-exit.

Thoughts?

Thanks!

Joseph

0001-Fix-completing-read-functional-REQUIRE-MATCH-behavio.patch
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