Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/gpodder/gui.py", line 592, in download_status_updated
    channel.update_model()
  File "/var/lib/python-support/python2.5/gpodder/libpodcasts.py", line 393, in update_model
    self.iter_set_downloading_columns( self.tree_model, iter, new_episodes)
  File "/var/lib/python-support/python2.5/gpodder/libpodcasts.py", line 421, in iter_set_downloading_columns
    elif services.download_status_manager.is_download_in_progress( url):
  File "/var/lib/python-support/python2.5/gpodder/services.py", line 184, in is_download_in_progress
    for element in self.status_list:
RuntimeError: dictionary changed size during iteration