AC-7039:: Customer Import: update to disable_auto_group_change ignored

Author: glo17720

app/code/Magento/CustomerImportExport/Model/Import/Customer.php

@@ -481,15 +481,15 @@ protected function _prepareDataForUpdate(array $rowData)
             $entitiesToCreate[] = $entityRow;
         } else {
             // edit
-            $columnDisableAutoGroupChange=CustomerInterface::DISABLE_AUTO_GROUP_CHANGE;
             $entityRow['updated_at'] = $now->format(\Magento\Framework\Stdlib\DateTime::DATETIME_PHP_FORMAT);
             if (!empty($rowData[self::COLUMN_STORE])) {
                 $entityRow['store_id'] = $this->_storeCodeToId[$rowData[self::COLUMN_STORE]];
             } else {
                 $entityRow['store_id'] = $this->getCustomerStoreId($emailInLowercase, $rowData[self::COLUMN_WEBSITE]);
             }
-            if (!empty($rowData[$columnDisableAutoGroupChange])) {
-                $entityRow[$columnDisableAutoGroupChange] = $rowData[$columnDisableAutoGroupChange];
+            if (!empty($rowData[CustomerInterface::DISABLE_AUTO_GROUP_CHANGE])) {
+                $entityRow[CustomerInterface::DISABLE_AUTO_GROUP_CHANGE] =
+                    $rowData[CustomerInterface::DISABLE_AUTO_GROUP_CHANGE];
             }
             $entitiesToUpdate[] = $entityRow;
         }

dev/tests/integration/testsuite/Magento/CustomerImportExport/Model/Import/CustomerTest.php

@@ -160,7 +160,7 @@ public function testImportData()
         $this->assertNotEquals(
             $existingCustomer->getDisableAutoGroupChange(),
             $updatedCustomer->getDisableAutoGroupChange(),
-            'disable_auto_group_change must be changed'
+            'Disable automatic group change based on VAT ID must be changed'
         );
         $this->assertEquals(
             $existingCustomer->getGender(),