The carousel does not follow the setting 'Only with products'

$rows = array();
if($this->params->get('only_if_products','-1')=='-1'){
	$config = hikashop_config();
	$defaultParams = $config->get('default_params');
	$this->params->set('only_if_products',@$defaultParams['only_if_products']);
}
$only_if_products = $this->params->get('only_if_products',0);
foreach($this->rows as $row) {
	if($only_if_products && $row->number_of_products < 1)
			continue;
	$rows[] = $row;
}
$this->rows = $rows;