Create EventPerson only when not present in event
Create EventPerson only when not present in event

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