[pitivi: 17/18] utils.py: fix stupid f #$%ing signalinterface unit test failure

[Edward Hervey <edwardrv src gnome org>]

commit 14168a1309cd24d50ad199ccae0ae560cf1ce58c
Author: Brandon Lewis <brandon_lewis alum berkeley edu>
Date:   Tue Dec 8 22:33:35 2009 -0800

    utils.py: fix stupid f #$%ing signalinterface unit test failure

 pitivi/utils.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/utils.py b/pitivi/utils.py
index 26e8141..ef6ef49 100644
--- a/pitivi/utils.py
+++ b/pitivi/utils.py
@@ -242,6 +242,9 @@ def uri_is_reachable(uri):
     return os.path.isfile(gst.uri_get_location(uri))
 
 class PropertyChangeTracker(Signallable):
+
+    __signals__ = {}
+
     def __init__(self):
         self.properties = {}
         self.obj = None