git pull behavior changed?

Hello,

I used to 'git pull' in a branch and it was working without any
questions asked. But now, if I do the following:

git checkout -b test
git pull

I get a warning telling me that "You asked me to pull without
telling me which branch ...". I would expect that my new local
branch behaves the same way as the master branch.

I am using 1.7.0.3

  -- aghiles