Comment 21 for bug 1377873

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.