[pitivi] timeline: Fix dragging of second clip from the media library to the timeline

[Jean-François Fortin Tam <jfft src gnome org>]

commit 4ef394b866fc170274cd33b0d4807ade91152c02
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Tue Sep 30 22:11:58 2014 +0200

    timeline: Fix dragging of second clip from the media library to the timeline
    
    Fixes https://bugzilla.gnome.org/show_bug.cgi?id=737634

 pitivi/timeline/timeline.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/timeline/timeline.py b/pitivi/timeline/timeline.py
index 298f3ba..0fa5875 100644
--- a/pitivi/timeline/timeline.py
+++ b/pitivi/timeline/timeline.py
@@ -1472,6 +1472,8 @@ class TimelineContainer(Gtk.Grid, Zoomable, Loggable):
             if self.isDraggedClip:
                 self.timeline.convertGhostClips()
                 self.timeline.resetGhostClips()
+                self.dropData = None
+                self.dropDataReady = False
                 if zoom_was_fitted:
                     self._setBestZoomRatio()
                 else:
@@ -1490,7 +1492,6 @@ class TimelineContainer(Gtk.Grid, Zoomable, Loggable):
 
     def _dragDataReceivedCb(self, widget, drag_context, unused_x, unused_y, selection_data, unused_info, 
timestamp):
         dragging_effect = selection_data.get_data_type().name() == "pitivi/effect"
-        print (dragging_effect)
         if not self.dropDataReady:
             if dragging_effect:
                 # Dragging an effect from the Effect Library.