$updater = $this->getDerivedDataUpdater( $user, $revision, $slots );
if ( !$updater->isUpdatePrepared() ) {
- $updater->prepareContent( $user, $slots, [], $useCache );
+ $updater->prepareContent( $user, $slots, $useCache );
if ( $revision ) {
$updater->prepareUpdate( $revision );