From 7bd5e25d290bf905fbf8254b66bedae01a5c6717 Mon Sep 17 00:00:00 2001
From: Fabian Schmengler <fs@integer-net.de>
Date: Fri, 8 May 2020 15:19:48 +0200
Subject: [PATCH] Prevent side effect on category objects store_id and url_key
 on save

---
 .../CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php b/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php
index a86604672e2b4..5775d6dffee4a 100644
--- a/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php
+++ b/app/code/Magento/CatalogUrlRewrite/Model/CategoryUrlRewriteGenerator.php
@@ -124,6 +124,9 @@ protected function generateForGlobalScope(
         $mergeDataProvider = clone $this->mergeDataProviderPrototype;
         $categoryId = $category->getId();
         foreach ($category->getStoreIds() as $storeId) {
+            if ($storeId !== Store::DEFAULT_STORE_ID) {
+                $category = clone $category; // prevent undesired side effects on original object
+            }
             $category->setStoreId($storeId);
             if (!$this->isGlobalScope($storeId)
                 && $this->isOverrideUrlsForStore($storeId, $categoryId, $overrideStoreUrls)