bug product family position

ShopBundle/Resources/public/js/backend/script/productfamily/vuejs-product-family.js

@@ -546,7 +546,7 @@ $(window).on('load', function () {
                         $(li).find('.field-position').val(index);
                         //log($(li).find('.field-position').val());
                     });
-                    //if(post)this.postForm();
+                    if(post)this.postForm();
                 }
             },