>> Would it be too disruptive to make "registering" a new file with Git a
>> no-op, and then require the user to commit it by going to VC Dir and
>> marking it?  That's the only alternative I can think of, given that it's
>> common to have lots of untracked, unignored files around you don't
>> intend ever to commit.
>
> I suppose we could use a more complex check in Git's case: if the diff is
> non-empty, check that it doesn't intersect with the diff we want to apply,
> or where it does, the contents are exactly the same. It's more complex than
> the existing one-liner, though.

Maybe like this?