Fix bug in calendar
Fix bug in calendar

Some occurrences weren't making it to the client

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