Fix exception in polls with special values (fallout from translation fix)
Fix exception in polls with special values (fallout from translation fix)

FinnStutzenstein/OpenSlides,emanuelschuetze/OpenSlides,ostcar/OpenSlides,CatoTH/OpenSlides,jwinzer/OpenSlides,rolandgeider/OpenSlides,boehlke/OpenSlides,FinnStutzenstein/OpenSlides,jwinzer/OpenSlides,CatoTH/OpenSlides,jwinzer/OpenSlides,normanjaeckel/OpenSlides,rolandgeider/OpenSlides,normanjaeckel/OpenSlides,boehlke/OpenSlides,OpenSlides/OpenSlides,jwinzer/OpenSlides,boehlke/OpenSlides,OpenSlides/OpenSlides,jwinzer/OpenSlides,tsiegleauq/OpenSlides,normanjaeckel/OpenSlides,emanuelschuetze/OpenSlides,CatoTH/OpenSlides,emanuelschuetze/OpenSlides,CatoTH/OpenSlides,FinnStutzenstein/OpenSlides,ostcar/OpenSlides,rolandgeider/OpenSlides,boehlke/OpenSlides,tsiegleauq/OpenSlides,emanuelschuetze/OpenSlides,ostcar/OpenSlides,FinnStutzenstein/OpenSlides,tsiegleauq/OpenSlides,normanjaeckel/OpenSlides