timeline-element: Reset pointer after freeing

dispose can be called multiple times, make sure we don't call functions
on free'd pointers.

diff --git a/ges/ges-timeline-element.c b/ges/ges-timeline-element.c
index 107547e..aca4290 100644 (file)
--- a/ges/ges-timeline-element.c
+++ b/ges/ges-timeline-element.c
@@ -250,8 +250,10 @@ ges_timeline_element_dispose (GObject * object)
 {
   GESTimelineElement *self = GES_TIMELINE_ELEMENT (object);
 
-  if (self->priv->children_props)
+  if (self->priv->children_props) {
     g_hash_table_unref (self->priv->children_props);
+    self->priv->children_props = NULL;
+  }
 
   g_clear_object (&self->priv->copied_from);
 }