Based on an irc conversation with dungodung
-{T|sr-ec:Crylic title here;sr:Other title here}-
Used to be able to change the title based on language variant (which as an aside is a nice way around the restrictions of DISPLAYTITLE, but i suppose that is needed). However roughly 4-5 months ago (so about 1.16 deployment time), this stopped working.
Example page: http://sr.wikipedia.org/sr-el/JobFair_-_Kreiraj_svoju_budu%C4%87nost!
Version: 1.16.x
Severity: normal
URL: http://sr.wikipedia.org/sr-el/JobFair_-_Kreiraj_svoju_budu%C4%87nost!