Thanks, Brad and Gergo,
now I see that there's no direct way to do this reliably.
In the past I needed something similar when translating the root category Content to an arbitrary language. I found a workaround, when the titles were retrieved by scanning the Language section of Category:Contents article, still works. But no new trick comes to mind here
On Fri, Jan 27, 2017 at 7:10 PM, Brad Jorsch (Anomie) <bjorsch@wikimedia.org
wrote:
i18n