Issue: Fatal Error Search for Wiki Pages

		$vault->unserialize('vault_namespaces');
		$criteria->add_filter('gotoarticle', vB_Search_Core::OP_EQ, $this->gotoarticle);

		foreach ($vbulletin->options['vault_namespaces'] AS $namespaceid => $info)
		{
			if ($namespaceid == SPECIAL_SPACE)
			{
				continue;
			}

			$vbulletin->GPC['namespace']["$namespaceid"] = 1;
		}

		if ($subforums OR empty($registry->GPC['forumchoice']))
		{
			require_once(DIR . '/vault/plugins/search.php');
			special_search_forumchoice();
			$allforums = array_values($vbulletin->GPC['forumchoice']);
		}

		if (!isset($_POST['forumchoice']))
		{
			// used simple wiki search form
			special_search_goto_article();

		$criteria->add_filter('gotoarticle', vB_Search_Core::OP_EQ, $this->gotoarticle);

		if ($subforums OR empty($registry->GPC['forumchoice']))
		{
			require_once(DIR . '/vault/functions/data.php');
			$allforums = array_values(special_fetch_wiki_forumids());
		}

		if (!isset($_POST['forumchoice']))
		{
			// used simple wiki search form
			require_once(DIR . '/vault/plugins/search.php');
			special_search_goto_article();