I did some further tests with actual versions of deja-dup and found out,
that the following restores does not work (I'm trying to restore a file
named `dortö`, that is located in `Schreibtisch/tröstfolder`
(''Schreibtisch'' means ''Desktop'', and ''tröstfolder'' is just some
folder with an ö inside) :

Reproduction Steps:

0. Install your Ubuntu in german.
1. Create the folder Schreibtisch/tröstfolder and the file 
Schreibtisch/tröstfolder/dortö
2. Perform a fresh Backup to an empty folder (use encryption by setting a 
password).
3. Delete the file.
4. Try out the following commands:

{{{LC_ALL=C deja-dup --restore ~/Schreiptich/tröstfolder/dortö}} and
{{{LC_ALL=C deja-dup --restore ~/Schreiptich/tröstfolder/dortö}}

work as expected.

{{{LC_ALL=C deja-dup --restore-missing tröstfolder/}} and 
{{{deja-dup --restore-missing tröstfolder/da}}

result in empty lists of files.

I decrypted the backup using `gpg --multifile --decrypt duplicity-
full.*.*.difftar.gpg` and unpacked the files manually using `for t in
duplicity-full.20110127T131352Z.*.difftar; do tar xf $t; done` (see
[[https://wiki.gnome.org/Apps/DejaDup/Help/Restore/WorstCase| "When
Everything Goes Wrong" in Gnome Wiki ]]). `dortö` was inside of the
folder `snapshot/home/test/Schreibtisch/tröstfolder`.

Versions: deja-dup `30.0-0ubuntu4` and duplicity `0.6.23-1ubuntu4.2`
OS.: Ubuntu Trusty Thar

Please Note: I installed the version `0.6.23-1ubuntu4.2` of duplicity
from proposed, to avoid being hit by  bug #1356548.

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https://bugs.launchpad.net/bugs/1377873

Title:
  deja-dup fails to restore missing files, that contain "german umlaut"
  (ä,ö,ü,Ä,Ö,Ü).

Status in Duplicity:
  New
Status in deja-dup package in Ubuntu:
  Confirmed

Bug description:
  I tried to restore some "missing files" (translated from german) deleted 
while deja-dup was creating a new backup.
  This attempt failed with the following Stacktrace:

  Traceback (most recent call last):
    File "/usr/bin/duplicity", line 1494, in <module>
      with_tempdir(main)
    File "/usr/bin/duplicity", line 1488, in with_tempdir
      fn()
    File "/usr/bin/duplicity", line 1337, in main
      do_backup(action)
    File "/usr/bin/duplicity", line 1422, in do_backup
      restore(col_stats)
    File "/usr/bin/duplicity", line 700, in restore
      % (globals.restore_dir,),
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xe4 in position 45: 
ordinal not in range(128)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: deja-dup 30.0-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Oct  6 12:01:55 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-09-28 (7 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: deja-dup
  UpgradeStatus: No upgrade log present (probably fresh install)

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