On Mon, Oct 3, 2022 at 2:20 AM Stefan Kangas <stefankangas@gmail.com> wrote:
severity 58216 wishlist
thanks

Allen Li <darkfeline@felesatra.moe> writes:

> Before the recent binding of C-h C-h to help-for-help, C-h C-h was
> unbound

AFAICT, that key binding has been the same since at least:

    commit 433ae6f6e191af1d1bc67025200ea54a08761e68
    Author: Richard M. Stallman <rms@gnu.org>
    Date:   Sun Aug 25 21:47:10 1991 +0000

        Initial revision

Which says:

    (define-key global-map "\C-h" 'help-command)
    (fset 'help-command help-map)
    (define-key help-map "\C-h" 'help-for-help)

> and thus used the default behavior of printing help for all keys
> bound to the prefix map.  As an example see the behavior for C-x C-h.
> If the user bound a key with C-h prefix, that binding previously would
> show up in C-h C-h help.

That's not what I see in Emacs 27.1.  Have you tried it in "emacs -Q"?

Seems like I misremembered, sorry about that.  Then this is a feature request not regression.