Possible bug in 'git status' exit code is 1 instead of 0

bash-3.1$ pwd
/home/marco/programmi/git
bash-3.1$ git status; echo $?
# On branch refs/heads/origin
nothing to commit (use "git add file1 file2" to include for commit)
1
bash-3.1$ git --version
git version 1.5.0.rc0.g244a7