Subject: 'git grep needle rev' attempts to access 'rev:.../.gitattributes' in the worktree

From: Johannes Sixt <[email-masked]>
Date: Tue, 09 Oct 2012 11:03:57 +0200

Running 'git grep needle origin/master' on Windows gives numerous warnings
of the kind

warning: unable to access 'origin/master:Documentation/.gitattributes':
Invalid argument

It is worrysome that it is attempted to access a file whose name is
prefixed by a revision.

-- Hannes