Now what: multiple HEAD refs

Hi,

just a heads-up for everyone tried "git pull" after using "git merge" too much:

$ git pull . ref1 HEAD (notice the space!)

will happily create refs/heads/HEAD. What happens next is not easily
to understand: all files suddenly declared "New" by "git status", "git
checkout" does not work, reporting "Need a single revision" (which is
actually _the_ hint here).

The solution is simple: remove .git/refs/heads/HEAD

Maybe "git fsck-object" can hint on multiple HEADS?