MC-19213: Category Specific URL Rewrite is not getting generated while importing and assigning the product to Category

Author: Roman Lytvynenko

app/code/Magento/CatalogUrlRewrite/Observer/AfterImportDataObserver.php

@@ -481,7 +481,7 @@ protected function currentUrlRewritesRegenerate()
             $url = $currentUrlRewrite->getIsAutogenerated()
                 ? $this->generateForAutogenerated($currentUrlRewrite, $category)
                 : $this->generateForCustom($currentUrlRewrite, $category);
-            $urlRewrites = array_merge($urlRewrites, $url);
+            $urlRewrites = $url + $urlRewrites;
         }
 
         $this->product = null;

dev/tests/integration/testsuite/Magento/CatalogImportExport/Model/Import/ProductTest.php

@@ -627,6 +627,7 @@ function ($input) {
                         explode(',', $optionData)
                     )
                 );
+                // phpcs:ignore Magento2.Performance.ForeachArrayMerge
                 $option = array_merge(...$option);
 
                 if (!empty($option['type']) && !empty($option['name'])) {
@@ -693,12 +694,14 @@ protected function mergeWithExistingData(
                 }
             } else {
                 $existingOptionId = array_search($optionKey, $expectedOptions);
+                // phpcs:ignore Magento2.Performance.ForeachArrayMerge
                 $expectedData[$existingOptionId] = array_merge(
                     $this->getOptionData($option),
                     $expectedData[$existingOptionId]
                 );
                 if ($optionValues) {
                     foreach ($optionValues as $optionKey => $optionValue) {
+                        // phpcs:ignore Magento2.Performance.ForeachArrayMerge
                         $expectedValues[$existingOptionId][$optionKey] = array_merge(
                             $optionValue,
                             $expectedValues[$existingOptionId][$optionKey]