[FIX] 'Booked for' user cannot cancel occurrence
[FIX] 'Booked for' user cannot cancel occurrence

ThiefMaster/indico,DirkHoffmann/indico,OmeGak/indico,mvidalgarcia/indico,indico/indico,DirkHoffmann/indico,OmeGak/indico,ThiefMaster/indico,pferreir/indico,pferreir/indico,mvidalgarcia/indico,ThiefMaster/indico,indico/indico,OmeGak/indico,mic4ael/indico,pferreir/indico,indico/indico,ThiefMaster/indico,mic4ael/indico,mvidalgarcia/indico,mic4ael/indico,indico/indico,mvidalgarcia/indico,mic4ael/indico,DirkHoffmann/indico,DirkHoffmann/indico,OmeGak/indico,pferreir/indico