Hi,
SUL auto-login will no longer automatically log you in to test.wikidata.org. You will have to visit the site once, wait for the "You are centrally logged in..." popup, and then reload the page.
We are now only setting a cookie for "www.wikidata.org" instead of the general ".wikidata.org" so the cookie does not apply to the new query.wikidata.org domain, which has the side-effect of it also not applying to test.wikidata.org. There are some more details at [1], [2] and [3].
[1] https://phabricator.wikimedia.org/T108101 [2] https://phabricator.wikimedia.org/T107602 [3] https://gerrit.wikimedia.org/r/#/c/230247/
Thanks, -- Legoktm