Fix bug (animateMotion not working) introduced when fixing creation of animation by script
Fix bug (animateMotion not working) introduced when fixing creation of animation by script

DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf,DmitrySigaev/gpac-sf