RE: "whether the global keymap C-x 4 will be replaced by a command,"

[Drew Adams]

> >> This means that after binding the current ctl-x-4-map in Emacs core
> >> to the other-window command, 'C-h k C-x 4' will display the help for
> >> that command, not for the whole sequence 'C-h k C-x 4 C-f'.
> >
> > I don't think we can/should make `C-h k` read all of `C-x 4 C-f`,
> indeed.
> > But maybe we could make the following work: `C-x 4 C-h k C-f`.
> 
> Would it be more expected for `C-x 4 C-h k C-f` to show the help buffer
> about `C-f` (forward-char) in another window?
> 
> The prefix `C-x 4` says "show the output of the next command in
> another window" where the next command is `C-h k C-f`.

Par exemple.  Good point.

Scratch a bit more, and I won't be surprised if we
stumble on other such dilemmas/surprises.