From 79aba0bba68d1ee7f609f83a519dbbaef427368b Mon Sep 17 00:00:00 2001
From: Mohamed ELIDRISSI <67818913+elidrissidev@users.noreply.github.com>
Date: Mon, 4 Sep 2023 10:08:44 +0100
Subject: [PATCH] Fix a Type Error when converting an Order with no Coupon to a
 Quote

---
 app/code/core/Mage/Sales/Model/Quote.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/code/core/Mage/Sales/Model/Quote.php b/app/code/core/Mage/Sales/Model/Quote.php
index ceca03d598b..c051774cdb7 100644
--- a/app/code/core/Mage/Sales/Model/Quote.php
+++ b/app/code/core/Mage/Sales/Model/Quote.php
@@ -2096,10 +2096,10 @@ public function getCouponCode(): string
     }
 
     /**
-     * @param string $couponCode
+     * @param string|null $couponCode
      * @return $this
      */
-    public function setCouponCode(string $couponCode)
+    public function setCouponCode(?string $couponCode)
     {
         return $this->setData('coupon_code', $couponCode);
     }