abrt version: 1.1.18
architecture: i686
cmdline: python /usr/bin/pitivi
component: pitivi
executable: /usr/bin/pitivi
kernel: 2.6.35.14-106.fc14.i686
package: pitivi-0.14.0-2.fc14
reason: filechooserpreview.py:163:_update_preview_cb:AttributeError: 'PreviewWidget' object has no attribute 'preview_cache'
release: Fedora release 14 (Laughlin)
time: 1361040885
uid: 500

backtrace
-----
filechooserpreview.py:163:_update_preview_cb:AttributeError: 'PreviewWidget' object has no attribute 'preview_cache'

Traceback (most recent call last):
  File "/usr/share/pitivi/python/pitivi/discoverer.py", line 445, in _busMessageEosCb
    self._finishAnalysis("EOS")
  File "/usr/share/pitivi/python/pitivi/discoverer.py", line 314, in _finishAnalysis
    if self._emitResult():
  File "/usr/share/pitivi/python/pitivi/discoverer.py", line 274, in _emitResult
    self._emitDone(factory)
  File "/usr/share/pitivi/python/pitivi/discoverer.py", line 233, in _emitDone
    self.emit("discovery-done", self.current_uri, factory)
  File "/usr/share/pitivi/python/pitivi/signalinterface.py", line 145, in emit
    *args, **kwargs)
  File "/usr/share/pitivi/python/pitivi/signalinterface.py", line 119, in emit
    res = cb(*ar, **kw)
  File "/usr/share/pitivi/python/pitivi/ui/filechooserpreview.py", line 163, in _update_preview_cb
    self.preview_cache[uri] = factory
AttributeError: 'PreviewWidget' object has no attribute 'preview_cache'

Local variables in innermost frame:
self: <PreviewWidget object at 0xa97a02c (GtkVBox at 0xab46dc0)>
dscvr: <pitivi.discoverer.Discoverer object at 0xa97d22c>
factory: <pitivi.factories.file.FileSourceFactory object at 0xa981fcc>
uri: 'file:///home/pasha/%D0%92%D0%B8%D0%B4%D0%B5%D0%BE/fin/Camera/VID_20130110_023129.mp4'

How to reproduce
-----
1./
2.
3.