I see that you moved the repos already, can you change the group
permissions to pkg-grass?
drwxrwsr-x+ 7 mhanke-guest collab-maint 4096 Mar 18 2013
qlandkartegt.git
drwxrwsr-x+ 7 mira-guest scm_collab-maint 4096 Jul 25 20:46 qmapshack.git
i.e. using:
chgrp -R scm_pkg-grass /git/pkg-grass/qlandkartegt.git/
/git/pkg-grass/qmapshack.git/
You'll to ask mhanke to this for the qlandkartegt.git repository.