/**
  * Tries to normalize the given page title against the given client site.
  * Updates $title accordingly and adds the normalization to the API output.
  *
  * @param string &$title
  * @param Site $site
  */
 public function normalizeTitle(&$title, Site $site)
 {
     $normalizedTitle = $site->normalizePageName($title);
     if ($normalizedTitle !== false && $normalizedTitle !== $title) {
         // @todo this should not be in the helper but in the module itself...
         $this->resultBuilder->addNormalizedTitle($title, $normalizedTitle);
         //XXX: the below is an ugly hack as we pass title by reference...
         $title = $normalizedTitle;
     }
 }