public static function loadUserInfoBypass($user_id)
    {
        global $CFG, $PDOX, $CONTEXT;
        $cacheloc = 'lti_user';
        $row = Cache::check($cacheloc, $user_id);
        if ( $row != false ) return $row;
        $stmt = $PDOX->queryDie(
            "SELECT displayname, email, user_key FROM {$CFG->dbprefix}lti_user AS U
            JOIN {$CFG->dbprefix}lti_membership AS M
            ON U.user_id = M.user_id AND M.context_id = :CID
            WHERE U.user_id = :UID",
            array(":UID" => $user_id, ":CID" => $CONTEXT->id)
        );
        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
        if ( strlen($row['displayname']) < 1 && strlen($row['user_key']) > 0 ) {
            $row['displayname'] = 'user_key:'.substr($row['user_key'],0,25);
        }
        Cache::set($cacheloc, $user_id, $row);
        return $row;
    }