Issue: Renaming article creates a "ghost article"; Reverting history removes all thumbnails

	$revision['pagetext'] = $revhandle->decompress($revision['pagetext'], $revision['unzip']);

	if (!isset($threadinfo['namespaceid']))
	{
		$vault->fetch_instance('field');
		$threadinfo['namespaceid'] = $vault->field->fetch_namespaceid($threadinfo['forumid']);
	}

	if ($threadinfo['namespaceid'] != ISLAND_SPACE)
	{
		// avoid making this article disappear after revert due to title collision
		if ($revision['title'] != $current['title'] OR $revision['prefixid'] != $current['prefixid'])
		{
			// find any collisions
			require_once(DIR . '/vault/functions/automate.php');
			$collide = special_read_article_title($revision['title'], $threadinfo['forumid'], false);

			if ($collide['threadid'] != $revision['threadid'])
			{
				// is it a redirect, if so overwrite
				$redirect = $vbulletin->db->query_first("
					SELECT link.postid
					FROM " . TABLE_PREFIX . "post AS post
					LEFT JOIN " . TABLE_PREFIX . "vault_link AS link ON (link.postid = post.postid)
					WHERE link.redirect = 1
						AND post.threadid = " . intval($collide['threadid']) . "
						AND post.parentid = 0
					LIMIT 1
				");

				if ($redirect)
				{
					// delete this
					$redirectinfo = fetch_threadinfo($collide['threadid']);

					global $countposts, $physicaldel, $delinfo;

					$delinfo = array(
						'userid' => $vbulletin->userinfo['userid'],
						'username' => $vbulletin->userinfo['username'],
						'reason' => '',
						'keepattachments' => false,
					);
					$physicaldel = true;

					$redirectforum = fetch_foruminfo($redirectinfo['forumid']);
					$countposts = ($redirectforum['options'] & $vbulletin->bf_misc_forumoptions['countposts']);

					$threadman = datamanager_init('Thread', $vbulletin, ERRTYPE_SILENT, 'threadpost');
					$threadman->set_existing($redirectinfo);
					$threadman->set_info('is_automated', true);
					$threadman->delete($countposts, $physicaldel);
					unset($threadman);

					if (fetch_threadinfo($collide['threadid'], false))
					{
						// delete failed; don't rename back
						$revision['title'] = $current['title'];
						$revision['prefixid'] = $current['prefixid'];
					}
				}
				else
				{
					// it's a regular article, don't rename this back
					$revision['title'] = $current['title'];
					$revision['prefixid'] = $current['prefixid'];
				}
			}
		}
	}

		$old['shout'] = $this->registry->options['stopshouting'];

		global $vault;

		$vault->fetch_instance('field');
		$this->info['is_island'] = ($vault->field->fetch_namespaceid($this->info['forumid']) == ISLAND_SPACE);

					!$this->info['prevent_redirect'] AND
					(
						$this->fetch_field('title') != $this->existing['title'] OR
						$this->fetch_field('prefixid') != $this->existing['prefixid']
					)

					!$this->info['is_island'] AND

				if (
					$this->existing['title'] != $this->fetch_field('title') OR
					$this->existing['prefixid'] != $this->fetch_field('prefixid')
				)
				{
					require_once(DIR . '/vault/functions/data.php');

				if (
					!$this->info['is_island'] AND
					(
						$this->existing['title'] != $this->fetch_field('title') OR
						$this->existing['prefixid'] != $this->fetch_field('prefixid')
					)
				)
				{
					require_once(DIR . '/vault/functions/data.php');

	$post['userid'] = $dataman->fetch_field($userfield . 'userid');

	$post['attach'] = $dataman->fetch_field('attach');