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

Author: svitja

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

@@ -41,7 +41,7 @@ public function execute()
             return $resultJson->setData([
                 'id' => $categoryId,
                 'path' => $category->getPath(),
-                'parentId' => $category->getParentID(),
+                'parentId' => $category->getParentId(),
             ]);
         }
     }

app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Category/RefreshPathTest.php

@@ -83,11 +83,11 @@ public function testExecute()
 
         $categoryMock = $this->getMockBuilder(\Magento\Catalog\Model\Category::class)
             ->disableOriginalConstructor()
-            ->setMethods(['getPath', 'getParentID', 'getResource'])
+            ->setMethods(['getPath', 'getParentId', 'getResource'])
             ->getMock();
 
         $categoryMock->expects($this->any())->method('getPath')->willReturn($value['path']);
-        $categoryMock->expects($this->any())->method('getParentID')->willReturn($value['parentId']);
+        $categoryMock->expects($this->any())->method('getParentId')->willReturn($value['parentId']);
 
         $categoryResource = $this->createMock(\Magento\Catalog\Model\ResourceModel\Category::class);