It is essential to support the multingualism of Wikimedia Commons (especially for categories) to allow page titles to be translated. T7638 attempted to do this by building on interlanguage links. T7638#101531 there is given as the reason for T7638 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 T7638 discussion.) Thank you.