T43345 <https://phabricator.wikimedia.org/T43345>is classified as a high
priority, and hasn't been fixed for three years. Getting a column added to
indicate that a language link is stored in a foreign repo shouldn't be this
hard. I can think of quite a few cases where this data could be leveraged
in one way or another. Wikidata is extremely widely used, and we still dont
have this basic feature implemented, who needs pressured to get progress
made on this? this should be a fairly straight up and trivial feature to
get going.