Fix example data generator
Fix example data generator

fix #4066

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