[FIX] Reloading material list in paper uploading
[FIX] Reloading material list in paper uploading

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