refs #4338: attempt to fix uploading

git-svn-id: svn://develop.studip.de/studip/trunk@30211 c5b85792-5220-0410-ad23-ed5b6b8ad999
refs #4338: remove debugging

git-svn-id: svn://develop.studip.de/studip/trunk@30212 c5b85792-5220-0410-ad23-ed5b6b8ad999