It is essential to support the multingualism of Wikimedia Commons (especially for categories) to allow page titles to be translated. Bug #5638 attempted to do this by building on interlanguage links. Comment 10 there https://bugzilla.wikimedia.org/show_bug.cgi?id=5638#c10 is given as the reason for 5638 being repeatedly WONTFIXed. If those issues are indeed insurmountable then ANOTHER SOLUTION MUST BE FOUND. (Sorry for shouting, but this message didn't get through at the tail of the 5638 discussion.) Thank you.