Fix error during user impersonation
Fix error during user impersonation

pferreir/indico,ThiefMaster/indico,DirkHoffmann/indico,ThiefMaster/indico,pferreir/indico,indico/indico,indico/indico,DirkHoffmann/indico,DirkHoffmann/indico,indico/indico,pferreir/indico,DirkHoffmann/indico,ThiefMaster/indico,pferreir/indico,ThiefMaster/indico,indico/indico