bug#58216: 28.2; New help-for-help hides user key bindings

[Stefan Kangas]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Stefan Kangas <stefankangas@gmail.com> writes:
>
>> I also tried replacing step 2 with this instead
>>
>>     (define-key help-map [?M] #'man)
>>
>> but I still couldn't see `C-h M' in there.
>
> That's what he wants to have fixed -- he wants to see `C-h M' in that
> buffer.

So this is a feature request?  I interpreted it as a regression, based
on this in the original bug report:

    The new `help-for-help' bound to C-h C-h hides the user's key bindings.

    I have bound a couple of commands to the C-h prefix to provide some
    personalized help and occasionally I would type C-h C-h to double check
    which commands I have bound, for some of the less frequently used ones.

    Previously, this would show the normal prefix help which describes all
    keys in the prefix map.  However, the new `help-for-help' does not do
    so.