Index: branches/5.2.x/units/order_items/order_items_event_handler.php
===================================================================
diff -u -N -r14986 -r15018
--- branches/5.2.x/units/order_items/order_items_event_handler.php	(.../order_items_event_handler.php)	(revision 14986)
+++ branches/5.2.x/units/order_items/order_items_event_handler.php	(.../order_items_event_handler.php)	(revision 15018)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: order_items_event_handler.php 14986 2012-01-04 16:11:56Z alex $
+* @version	$Id: order_items_event_handler.php 15018 2012-01-09 11:41:23Z alex $
 * @package	In-Commerce
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license	Commercial License
@@ -200,7 +200,7 @@
 							$main_object->setCheckoutError(OrderCheckoutErrorType::DISCOUNT, $error_code);
 						}
 					}
-					elseif ( $changed_field == 'Quantity' ) {
+					elseif ( $changed_field == 'Quantity' && $this->Application->isDebugMode() ) {
 						// here is how qty is changed:
 						// OLD QTY -> NEW QTY
 						// RECALCULATE