[pitivi] timeline: Removing an effect should not trigger graphical updates.

[Mathieu Duponchelle <mathieudu src gnome org>]

commit 0842203bef128b557a318655f171a6f59c0a1e2e
Author: Mathieu Duponchelle <mathieu duponchelle epitech eu>
Date:   Sun May 5 20:15:18 2013 +0200

    timeline: Removing an effect should not trigger graphical updates.

 pitivi/timeline/timeline.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/timeline/timeline.py b/pitivi/timeline/timeline.py
index fc09f94..38b99ce 100644
--- a/pitivi/timeline/timeline.py
+++ b/pitivi/timeline/timeline.py
@@ -372,6 +372,8 @@ class TimelineStage(Clutter.ScrollActor, Zoomable):
         self.add_child(element)
 
     def _removeTimelineElement(self, track, bElement):
+        if isinstance(bElement, GES.Effect):
+            return
         bElement.disconnect_by_func(self._elementStartChangedCb)
         bElement.disconnect_by_func(self._elementDurationChangedCb)
         bElement.disconnect_by_func(self._elementInPointChangedCb)