[pitivi] mainwindow: Fix an error occurring after choosing a missing clip's new location

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

commit ecb05416fd1252fa7f3aa0ed8b8122da63048c9b
Author: Jean-FranÃois Fortin Tam <nekohayo gmail com>
Date:   Wed Jan 30 18:05:38 2013 -0500

    mainwindow: Fix an error occurring after choosing a missing clip's new location

 pitivi/mainwindow.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/pitivi/mainwindow.py b/pitivi/mainwindow.py
index c1513e7..2133da0 100644
--- a/pitivi/mainwindow.py
+++ b/pitivi/mainwindow.py
@@ -1040,7 +1040,7 @@ class PitiviMainWindow(Gtk.Window, Loggable):
         if response == Gtk.ResponseType.OK:
             self.log("User chose a new URI for the missing file")
             new_uri = chooser.get_uri()
-            self.app.current.setModificationState(self, False)
+            self.app.current.setModificationState(False)
         else:
             # Even if the user clicks Cancel, the discoverer keeps trying to
             # import the rest of the clips...