[BUG] git-svn failure with python repository

I got an error importing the python repository with git-svn.
The error could be due to a funky branch name.

git --version
git version 1.5.6.1.89.gd5446

LANG= git svn clone -s http://svn.python.org/projects/python
…
r5002 = 8aa67da1bc987c02661b5331eae7c349be2da0ef (trunk)
Found possible branch point: http://svn.python.org/projects/python/trunk => http://svn.python.org/projects/python/tags/Beta_14-Mar-1995-#2, 5002
Found branch parent: (tags/Beta_14-Mar-1995-#2) 8aa67da1bc987c02661b5331eae7c349be2da0ef
Following parent with do_switch
Invalid filesystem path syntax: REPORT request failed on '/projects/!svn/vcc/default': Target path does not exist at /home/g2p/bin/git-svn line 3892