* @param ActorMigration $actorMigration
* @param int $migrationStage
* @param LoggerSpi $loggerProvider
- * @param bool $contentHandlerUseDB see {@link $wgContentHandlerUseDB}
+ * @param bool $contentHandlerUseDB see {@link $wgContentHandlerUseDB}. Must be the same
+ * for all wikis in the cluster. Will go away after MCR migration.
*/
public function __construct(
ILBFactory $dbLoadBalancerFactory,