timeline-element: Do not consider not serializable elements when getting top element

Those are temporary elements that should not be considered when dealing
with the hierarchy of objects.

Fixes T3455

diff --git a/ges/ges-timeline-element.c b/ges/ges-timeline-element.c
index 94e8968..721243a 100644 (file)
--- a/ges/ges-timeline-element.c
+++ b/ges/ges-timeline-element.c
@@ -1149,7 +1149,8 @@ ges_timeline_element_get_toplevel_parent (GESTimelineElement * self)
 
   g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (self), NULL);
 
-  while (GES_TIMELINE_ELEMENT_PARENT (toplevel))
+  while (GES_TIMELINE_ELEMENT_PARENT (toplevel) &&
+      GES_TIMELINE_ELEMENT_PARENT (toplevel)->priv->serialize)
     toplevel = GES_TIMELINE_ELEMENT_PARENT (toplevel);
 
   return gst_object_ref (toplevel);