Re: [RFC/PATCH 0/7] Rework git core for native submodules

Ramkumar Ramachandra [off-list ref] writes:

Does git diff/ commit/ add/ rm or any other command you can think of
rely on a special file in the worktree (aka .gitmodules) to be checked
out?

Try "git add foo~" with usual suspect in .gitignore ;-)