	private function _modifiedby( $option ) {
		$this->addTable( 'revision_actor_temp', 'change_rev' );
		$user = new \User;

		$this->addWhere( $this->DB->addQuotes( $user->newFromName( $option )->getActorId() ) . ' = change_rev.revactor_actor AND change_rev.revactor_page = page_id' );
	}
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.