Git Help

[Thomas Charron]

  As a git newb, I've got a couple of questions about git which
confuse me.  Any git users who might be able to explain?

  If I'm in a directory and have made local modifications, and then I
issue a git branch, what does the branch contain a copy of if I check
it out?  The latest head?  Or does the branch branch whatever I'm
working on to a new branch, which contains a copy of the state of the
original branch?

-- 
-- Thomas