[FIX] Initialize GeneralField when create event
[FIX] Initialize GeneralField when create event

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