[pitivi] tests: Fix TestTimelineUndo.testClipPropertyChange

[Thibault Saunier <tsaunier src gnome org>]

commit 6433297be1f7fe85f752c3bac1bd8488c6450d66
Author: Thibault Saunier <tsaunier gnome org>
Date:   Thu May 5 17:29:15 2016 -0300

    tests: Fix TestTimelineUndo.testClipPropertyChange
    
    It was broken by 2ef4a098495662ebe96b24213d9cf40fda56c8c6 -
    undo: Fix DND of clips in the timeline

 tests/test_undo_timeline.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/tests/test_undo_timeline.py b/tests/test_undo_timeline.py
index 197cef8..e00e4ca 100644
--- a/tests/test_undo_timeline.py
+++ b/tests/test_undo_timeline.py
@@ -379,6 +379,9 @@ class TestTimelineUndo(TestCase):
         stacks = []
         self.action_log.connect("commit", TestTimelineUndo.commitCb, stacks)
 
+        # We are not dropping clips here...
+        self.app.gui.timeline_ui.timeline.dropping_clips = False
+
         clip1 = GES.TitleClip()
         self.layer.add_clip(clip1)
         clip1.set_start(5 * Gst.SECOND)