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@merk @stof I'm not sure what to do with the other languages, I don't speak Russian for example. I've also noticed that some other translation files are not complete too:

https://github.com/FriendsOfSymfony/FOSCommentBundle/blob/master/Resources/translations/FOSCommentBundle.da.yml
vs
https://github.com/FriendsOfSymfony/FOSCommentBundle/blob/master/Resources/translations/FOSCommentBundle.en.yml

etc