LucasWerkmeisterWMDE
On the Wikibase Registry wiki (wikibase-registry.wmflabs.org; MediaWiki 1.30.0), Special:RecentChanges shows a very odd time limit:
Show last 50 | 100 | 250 | 500 changes in last 0.011574074074074 | 1 | 3 | 7 | 14 | 30 days
Similarly on my watchlist:
Below are the last 0 changes in the last 0 hours, as of 9 May 2018, 12:02.
Period of time to display: 0.27777777777778 hours
Attempting to select any different timespan has no effect, making it difficult to review changes or fight vandalism on the wiki.
Has anyone seen this issue before, or do you have an idea what might cause this? @addshore and I are baffled.
(Also tracked as T193021.)