Fixing i18n

app/coffee/modules/auth.coffee

@@ -54,7 +54,7 @@ class AuthService extends taiga.Service
 
     _setLocales: ->
         lang = @rootscope.user.lang || @config.get("defaultLanguage") || "en"
-        @translate.use(lang)
+        @translate.preferredLanguage(lang)
 
     getUser: ->
         if @rootscope.user

app/coffee/modules/base/http.coffee

@@ -37,7 +37,7 @@ class HttpService extends taiga.Service
             headers["Authorization"] = "Bearer #{token}"
 
         # Accept-Language
-        lang = @rootScope.user?.lang || @translate.preferredLanguage()
+        lang = @translate.preferredLanguage()
         if lang
             headers["Accept-Language"] = lang
 

app/coffee/modules/user-settings/main.coffee

@@ -96,7 +96,6 @@ UserProfileDirective = ($confirm, $auth, $repo, $translate) ->
 
             changeEmail = $scope.user.isAttributeModified("email")
             $scope.user.lang = $scope.lang
-            $translate.preferredLanguage($scope.lang)
 
             onSuccess = (data) =>
                 $auth.setUser(data)