Git help

[Rune Zedeler]

I (think I) made my own branch:

address@hidden:~/lilypond/lilypond git push 
ssh+git://address@hidden/srv/git/lilypond.git/ dev/rune:dev/rune
updating 'refs/heads/dev/rune'
  from 8505bf3b6810af409fb83e12eba32ff6599a1d17
  to   1982a5513e92f4f01605e9dbfdbb997f314b1cac
Generating pack...
Done counting 9 objects.
Result has 5 objects.
Deltifying 5 objects.
 100% (5/5) done
Writing 5 objects.
 100% (5/5) done
Total 5, written 5 (delta 4), reused 0 (delta 0)
refs/heads/dev/rune: 8505bf3b6810af409fb83e12eba32ff6599a1d17 -> 
1982a5513e92f4f01605e9dbfdbb997f314b1cac
address@hidden:~/lilypond/lilypond$

But nevertheless if I

address@hidden:/tmp$ git clone git://git.sv.gnu.org/lilypond.git
[...]
address@hidden:/tmp$ cd lilypond
address@hidden:/tmp/lilypond$ git checkout dev/rz
error: pathspec 'dev/rz' did not match any.
address@hidden:/tmp/lilypond$

What went wrong, and WHY THE "#¤%/"#¤/()"#¤/&)"#¤% didn't I get any 
error message when I did the push???

-Rune (really getting annoyed with git)