Comment 5 for bug 1049002

I am seeing a similar message while trying to restore a file

deja-dup_26.0-0ubuntu1_amd64.deb
Linux Mint 15 Olivia

Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1411, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1404, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1286, in main
    globals.archive_dir).set_values()
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 693, in set_values
    self.get_backup_chains(partials + backend_filename_list)
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", lineTraceback (most recent call last):
  File "/usr/bin/duplicity", line 1411, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1404, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1286, in main
    globals.archive_dir).set_values()
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 693, in set_values
    self.get_backup_chains(partials + backend_filename_list)
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 816, in get_backup_chains
    map(add_to_sets, filename_list)
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 806, in add_to_sets
    if set.add_filename(filename):
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 97, in add_filename
    (self.volume_name_dict, filename)
AssertionError: ({1: 'duplicity-full.20130105T232525Z.vol1.difftar', 2: 'duplicity-full.20130105T232525Z.vol2.difftar.gz',
...
full.20130105T232525Z.vol714.difftar.gz', 715: 'duplicity-full.20130105T232525Z.vol715.difftar.gz'}, 'duplicity-full.20130105T232525Z.vol1.difftar.gz')