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

From: Stefan Monnier <[email-masked]>
Date: Sat, 07 Oct 2023 11:12:45 -0400

> 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 :-)

        Stefan