Creating links to EmacsWiki with Interwiki are using an old scheme:
Should use the new scheme:
Change 520159 had a related patch set uploaded (by Ashawley; owner: Ashawley):
[mediawiki/core@master] Update EmacsWiki in Interwiki
I've asked the maintainer of the EmacsWiki if this is the right thing to do(TM).
Maybe wait on reviews until we hear back from Alex.
Sounds like the right thing to do.
Thanks for confirming this, Alex.