From 01c5b4a713e30bcec98ff4e59e6dbad54106db91 Mon Sep 17 00:00:00 2001
From: Nathaniel Hammond <nathaniel@pixelandtonic.com>
Date: Fri, 12 Jan 2024 08:51:38 +0000
Subject: [PATCH] Fixed #3364 saving a sale error

---
 CHANGELOG.md                        | 4 ++++
 src/controllers/SalesController.php | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d45a62d69d..a6bb0b83ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Release Notes for Craft Commerce
 
+## Unreleased
+
+- Fixed a PHP error that occurred when saving a sale. ([#3364](https://github.com/craftcms/commerce/issues/3364))
+
 ## 4.4.1 - 2024-01-12
 
 - Fixed a SQL error that could occur when updating to Commerce 4.4.0 on MySQL. ([#3367](https://github.com/craftcms/commerce/issues/3367))
diff --git a/src/controllers/SalesController.php b/src/controllers/SalesController.php
index e75b04036a..64ab1b4fc1 100644
--- a/src/controllers/SalesController.php
+++ b/src/controllers/SalesController.php
@@ -142,7 +142,7 @@ public function actionSave(): ?Response
         $sale->sortOrder = (int)$this->request->getBodyParam('sortOrder');
         $sale->ignorePrevious = (bool)$this->request->getBodyParam('ignorePrevious');
         $sale->stopProcessing = (bool)$this->request->getBodyParam('stopProcessing');
-        $sale->categoryRelationshipType = $this->request->getBodyParam('categoryRelationshipType');
+        $sale->categoryRelationshipType = $this->request->getBodyParam('categoryRelationshipType', $sale->categoryRelationshipType);
 
         $applyAmount = Localization::normalizeNumber($applyAmount);
         if ($sale->apply == SaleRecord::APPLY_BY_PERCENT || $sale->apply == SaleRecord::APPLY_TO_PERCENT) {