Feature upgrade to9 lts

Configuration/TCA/Overrides/fe_users.php

@@ -221,6 +221,8 @@ call_user_func(
 
 		$newFields = 'tx_sgaccount_images, tx_sgaccount_emails';
 
+		$GLOBALS['TCA'][$table]['columns']['name']['config']['readOnly'] = TRUE;
+
 		if (ExtensionManagementUtility::isLoaded('static_info_tables')) {
 			$newColumns['tx_sgaccount_static_info_country'] = [
 				'exclude' => TRUE,