From 9163cb7e7901b045368745c37f7b0ec22c5b935b Mon Sep 17 00:00:00 2001
From: kiat ng <kiatsiong.ng@gmail.com>
Date: Fri, 25 Mar 2022 16:24:20 +0800
Subject: [PATCH] Fixed PR #523, prevent unnecessary saving of status history
 when order is saved.

---
 app/code/core/Mage/Sales/Model/Order.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/app/code/core/Mage/Sales/Model/Order.php b/app/code/core/Mage/Sales/Model/Order.php
index ad23b81ec2b..8111b4f00e8 100644
--- a/app/code/core/Mage/Sales/Model/Order.php
+++ b/app/code/core/Mage/Sales/Model/Order.php
@@ -1895,8 +1895,10 @@ public function getStatusHistoryCollection($reload = false)
                 ->setOrder('entity_id', 'desc');
 
             if ($this->getId()) {
+                /** @var Mage_Sales_Model_Order_Status_History $status */
                 foreach ($this->_statusHistory as $status) {
                     $status->setOrder($this);
+                    $status->setDataChanges(false);
                 }
             }
         }