MAGETWO-81926: Category hierarchy isn't updated on Product Admin page

Author: svitja

app/code/Magento/Catalog/Controller/Adminhtml/Category/RefreshPath.php

@@ -38,7 +38,11 @@ public function execute()
 
             /** @var \Magento\Framework\Controller\Result\Json $resultJson */
             $resultJson = $this->resultJsonFactory->create();
-            return $resultJson->setData(['id' => $categoryId, 'path' => $category->getPath()]);
+            return $resultJson->setData([
+                'id' => $categoryId,
+                'path' => $category->getPath(),
+                'parentid' => $category->getParentID(),
+            ]);
         }
     }
 }

app/code/Magento/Catalog/Controller/Adminhtml/Category/Save.php

@@ -138,6 +138,9 @@ public function execute()
         $parentId = isset($categoryPostData['parent']) ? $categoryPostData['parent'] : null;
         if ($categoryPostData) {
             $category->addData($categoryPostData);
+            if ($parentId) {
+                $category->setParentId($parentId);
+            }
             if ($isNewCategory) {
                 $parentCategory = $this->getParentCategory($parentId, $storeId);
                 $category->setPath($parentCategory->getPath());

app/code/Magento/Catalog/view/adminhtml/web/catalog/category/form.js

@@ -14,6 +14,7 @@ define([
             options: {
                 categoryIdSelector: 'input[name="id"]',
                 categoryPathSelector: 'input[name="path"]',
+                categoryParentSelector: 'input[name="parent"]',
                 refreshUrl: config.refreshUrl
             },
 
@@ -45,6 +46,7 @@ define([
                 } else {
                     $(this.options.categoryIdSelector).val(data.id).change();
                     $(this.options.categoryPathSelector).val(data.path).change();
+                    $(this.options.categoryParentSelector).val(data.parentid).change();
                 }
             }
         };