Appears to occur when running install.php for a new wikibase on master...
LogicException from line 18 of /var/www/mediawiki/extensions/Wikibase/data-access/src/UnusableEntitySource.php: Wikibase\DataAccess\UnusableEntitySource should never be used #0 /var/www/mediawiki/extensions/Wikibase/lib/includes/Store/Sql/PropertyInfoTable.php(74): Wikibase\DataAccess\UnusableEntitySource->getDatabaseName() #1 /var/www/mediawiki/extensions/Wikibase/repo/includes/Store/Sql/DatabaseSchemaUpdater.php(221): Wikibase\Lib\Store\Sql\PropertyInfoTable->__construct(Object(Wikibase\DataModel\Services\EntityId\EntityIdComposer), Object(Wikibase\DataAccess\UnusableEntitySource), Object(Wikibase\DataAccess\DataAccessSettings)) #2 /var/www/mediawiki/includes/installer/DatabaseUpdater.php(490): Wikibase\Repo\Store\Sql\DatabaseSchemaUpdater::rebuildPropertyInfo(Object(MysqlUpdater)) #3 /var/www/mediawiki/includes/installer/DatabaseUpdater.php(458): DatabaseUpdater->runUpdates(Array, true) #4 /var/www/mediawiki/maintenance/update.php(197): DatabaseUpdater->doUpdates(Array) #5 /var/www/mediawiki/maintenance/doMaintenance.php(99): UpdateMediaWiki->execute() #6 /var/www/mediawiki/maintenance/update.php(270): require_once('/var/www/mediaw...') #7 {main}