public function hasAliasedContent()
    {
        $db = Loader::db();
        // aliased content is content on the particular page that is being
        // used elsewhere - but the content on the PAGE is the original version
        $v = [$this->cID];
        $q = 'select bID from CollectionVersionBlocks where cID = ? and isOriginal = 1';
        $r = $db->query($q, $v);
        $bIDArray = [];
        if ($r) {
            while ($row = $r->fetchRow()) {
                $bIDArray[] = $row['bID'];
            }
            if (count($bIDArray) > 0) {
                $bIDList = implode(',', $bIDArray);
                $v2 = [$bIDList, $this->cID];
                $q2 = 'select cID from CollectionVersionBlocks where bID in (?) and cID <> ? limit 1';
                $aliasedCID = $db->getOne($q2, $v2);
                if ($aliasedCID > 0) {
                    return true;
                }
            }
        }

        return false;
    }