Jul 21 11:03:58 mw1181: #012Catchable fatal error: Argument 4 passed to WikibaseQuality\ConstraintReport\Constraint::__construct() must be an instance of array, null given in /srv/mediawiki/php-1.30.0-wmf.10/extensions/Wikidata/extensions/Constraints/includes/ConstraintRepository.php on line 145
Happening when accessing https://www.wikidata.org/wiki/Special:ConstraintReport/Q42.