It looks like page moves on the client don't always propagate to the repository. This edit for example was done by hand: https://www.wikidata.org/w/index.php?title=Q274040&diff=prev&oldid=66495391 The page on Wikipedia was moved 5 days before that and Wikidata wasn't updated automatically.
Version: master
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=56457