Wrong qty for ajax add to cart

Made a minimal order qty for category, found a bug. Although data-quantity=”3″, cart qty=1.
In file auxin-elements/public/assets/js/scripts.js
line 72
original code

if ( $(this).parents('.aux-shop-quicklook-modal')) {
                quantity = $(this).parents('.aux-shop-quicklook-modal').find('.quantity input').val();
            }

works always, should be changed to

if ( $(this).parents('.aux-shop-quicklook-modal').length) {
                quantity = $(this).parents('.aux-shop-quicklook-modal').find('.quantity input').val();
            }