bug#51384: 28.0.60; substitute-command-keys finds global binding for undo instead of in specified keymap

[Juri Linkov]

>     Andreas> On Okt 25 2021, Robert Pluim wrote:
>     >> (substitute-command-keys "\\<undo-repeat-map>\\[undo]")
>     >> => #("C-x u" 0 5 (face help-key-binding font-lock-face 
> help-key-binding))
>
>     Andreas> :advertised-binding takes precedence.
>
> So it does, which is unfortunate, underdocumented, and unnecessary,
> since just not specifying the map will get you the
> :advertised-binding anyway.
>
> \\(map) anyone, to mean "really only look up in this map"?

For readers of this bug report, here is a link to the discussion:
https://lists.gnu.org/archive/html/emacs-devel/2021-10/msg01845.html