Add flat mode to MultiStringField
Add flat mode to MultiStringField

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