bug#50752: 28.0.50; easy-menu-define lowers the menu-bar key

[Eli Zaretskii]

> From: Stefan Kangas <stefan@marxist.se>
> Date: Tue, 26 Oct 2021 01:38:32 -0700
> Cc: rgm@gnu.org, 50752@debbugs.gnu.org, shuguang79@qq.com
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> I think just downcasing ASCII would get use more than 99%, really.
> >
> > Then let's go with this variant on emacs-28, and leave the full
> > solution for master.
> 
> OK.  I'm not sure if you just mean my previous patch, but without Lars'
> fixes for the Turkish language environment, or if you mean a stripped
> down version of my patch.

Unfortunately, I meant neither of these two, because they both are
quite non-trivial.  I meant a much simpler patch which only downcases
ASCII letters, and that's all.  Such a change doesn't need to call
Fdowncase, and definitely doesn't need to futz with multibyte
characters.  It should be a simple copy and a single loop downcasing
the characters.  (The NEWS entry for emacs-28 should thus say that we
only handle this simple class of problems.)

The log message should say "don't merge to master".

Sorry for not expressing myself clearly enough.