On Tue, Dec 16, 2014 at 5:44 AM, Marc Ordinas i Llopis < marcoil@wikimedia.org> wrote:
Due to how MediaWiki's messages system works, changes to the display styles need to be copied into each of the ~300 display languages for users, else those users with different languages will see different reference styles on the same page.
That sounds like bug T33216, which was fixed a while ago. Does this actually occur now?