MAGETWO-96599: Backorder customer notification is not shown in Magento 2.2.0 / 2.1.9 on One page checkout #11708

Author: yelahin-serhiy

app/code/Magento/Checkout/view/frontend/web/js/view/summary/item/details/message.js

@@ -25,7 +25,6 @@ define(['uiComponent'], function (Component) {
             }
 
             return null;
-        },
-
+        }
     });
 });

app/code/Magento/Checkout/view/frontend/web/template/summary/item/details.html

@@ -8,7 +8,7 @@
 <!-- ko foreach: getRegion('before_details') -->
     <!-- ko template: getTemplate() --><!-- /ko -->
 <!-- /ko -->
-<div class="product-item-details abs-add-clearfix">
+<div class="product-item-details">
 
     <div class="product-item-inner">
         <div class="product-item-name-block">

app/design/frontend/Magento/luma/Magento_Checkout/web/css/source/module/checkout/_order-summary.less

@@ -137,6 +137,10 @@
         }
 
         .product-item {
+            .product-item-details {
+                &:extend(.abs-add-clearfix all);
+            }
+
             .product-item-inner {
                 display: table;
                 margin: 0 0 @indent__s;