disable_auto_group condition check

Author: Vasudev-22

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

@@ -8,11 +8,11 @@
 namespace Magento\CustomerImportExport\Model\Import;
 
 use Magento\Customer\Api\Data\CustomerInterface;
-use Magento\ImportExport\Model\Import;
-use Magento\ImportExport\Model\Import\ErrorProcessing\ProcessingErrorAggregatorInterface;
-use Magento\ImportExport\Model\Import\AbstractSource;
 use Magento\Customer\Model\Indexer\Processor;
 use Magento\Framework\App\ObjectManager;
+use Magento\ImportExport\Model\Import;
+use Magento\ImportExport\Model\Import\AbstractSource;
+use Magento\ImportExport\Model\Import\ErrorProcessing\ProcessingErrorAggregatorInterface;
 
 /**
  * Customer entity import
@@ -491,7 +491,9 @@ protected function _prepareDataForUpdate(array $rowData)
             } else {
                 $entityRow['store_id'] = $this->getCustomerStoreId($emailInLowercase, $rowData[self::COLUMN_WEBSITE]);
             }
-            $entityRow[self::COLUMN_DISABLE_AUTO_GROUP_CHANGE] = $rowData[self::COLUMN_DISABLE_AUTO_GROUP_CHANGE];
+            if (!empty($rowData[self::COLUMN_DISABLE_AUTO_GROUP_CHANGE])) {
+                $entityRow[self::COLUMN_DISABLE_AUTO_GROUP_CHANGE] = $rowData[self::COLUMN_DISABLE_AUTO_GROUP_CHANGE];
+            }
             $entitiesToUpdate[] = $entityRow;
         }