Please describe the problem:
"Properties" on certain files type changes the language of nautilus.
Observed with a french nautilus, the new language is english.
Most of the words are changed (menus, icons text, some text column).

Steps to reproduce:
1. Use nautilus in a different language than English ;
2. Open nautilus and right click on a mp3 files ;
2. Choose properties ;
3. Close the dialog box ;
4. Open a new window of nautilus, the language have changed.


Actual results:
Most of the translation doesn't work anymore in nautilus.

Expected results:
It mustn't affect the translation.

Does this happen every time?
Everytime on audio and video files.

Other information:
In a shell : nautilus -q reset nautilus the translation.