Bug in php 7.3

[jq153387]

Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in \libraries\windwalker\vendor\windwalker\filesystem\Iterator\ArrayObject.php on line 454

foreach ($ar as $k => $v) {
  switch ($k) {
        case 'flag':
            $this->setFlags($v);
            break;
        case 'storage':
            $this->exchangeArray($v);
            break;
        case 'iteratorClass':
            $this->setIteratorClass($v);
            break;
        case 'protectedProperties':
            continue 2;  //"continue" uses "continue 2" to resolve this error
        default:
            $this->__set($k, $v);
    }
}