From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Sat, 09 Feb 2013 12:25:26 GMT
Subject: [BUG] can't switch branches with submodules
Message-ID: <CALkWK0=aifKVHnPZSfqE0rLn1aUGqC0nBULaLCe6UY2=6YGZ9g@mail.gmail.com>

Hi,

I have two branches: master and gh-pages.  master has one submodule
called foo that gh-pages doesn't.  When I try to check out gh-pages
from master:

    warning: unable to rmdir foo: Directory not empty

And the foo directory exists in my worktree.  This is very annoying,
and I want to fix it now.  Where is this error coming from?  How does
the worktree get updated when I checkout?