Re: vc-register complains if a file is already registered in a git repository

[Stefan Monnier]

> Unfortunately when I use vc-register on a file that is already in the
> repository, it complains, saying "This file is already registered". This
> is a reasonable thing to do in most VC systems, but git behaves
> differently since it's a common thing to want to register the changes
> you've just made to the git index (or staging area).

I'm not sure we want to allow C-x v i to do that.  OT1H it might be
convenient and maybe it can work well, but OTOH it looks risky and would
require changing vc-register more than I'd like.

It would probably be better for vc-git to provide another command, for that.
We could probably add a `extra-keys' operation similar to `extra-menu'
so that vc-git can not only provide a new command but also provide
a specific C-x v <foo> key binding for it.


        Stefan