MAGETWO-53170: Add/Remove product actions are not observed by update cart qty event

Author: Yaroslav Onischenko

app/code/Magento/Checkout/CustomerData/DefaultItem.php

@@ -71,6 +71,7 @@ protected function doGetItemData()
             'configure_url' => $this->getConfigureUrl(),
             'is_visible_in_site_visibility' => $this->item->getProduct()->isVisibleInSiteVisibility(),
             'product_name' => $this->item->getProduct()->getName(),
+            'product_sku' => $this->item->getProduct()->getSku(),
             'product_url' => $this->getProductUrl(),
             'product_has_url' => $this->hasProductUrl(),
             'product_price' => $this->checkoutHelper->formatPrice($this->item->getCalculationPrice()),

app/code/Magento/Checkout/view/frontend/web/template/minicart/item/default.html

@@ -74,7 +74,8 @@
                     <input data-bind="attr: {
                            id: 'cart-item-'+item_id+'-qty',
                            'data-cart-item': item_id,
-                           'data-item-qty': qty
+                           'data-item-qty': qty,
+                            'data-cart-item-id': product_sku
                            }, value: qty"
                            type="number"
                            size="4"