Dont update namespace if User name was changed. Use user#username for...

Dont update namespace if User name was changed. Use user#username for namespace name because Namespace#name validates by uniq

app/observers/user_observer.rb

@@ -13,8 +13,8 @@ class UserObserver < BaseObserver
     # Ensure user has namespace
     user.create_namespace!(path: user.username, name: user.username) unless user.namespace
-    if user.username_changed? || user.name_changed?
-      user.namespace.update_attributes(path: user.username, name: user.name)
+    if user.username_changed?
+      user.namespace.update_attributes(path: user.username, name: user.username)
     end
   end
 end