Fixing PDF filenames on zip export if no identifier is given
Fixing PDF filenames on zip export if no identifier is given

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