MC-34999: Storefront: Wrong behavior of the functional "Order by SKU" if use an existing similar sku

Author: SeruyV

dev/tests/integration/testsuite/Magento/Catalog/_files/simple_product_cyrillic_symbols.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+use Magento\Catalog\Api\Data\ProductInterfaceFactory;
+use Magento\Catalog\Model\Product\Attribute\Source\Status;
+use Magento\Catalog\Model\Product\Type;
+use Magento\Catalog\Model\Product\Visibility;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Store\Api\WebsiteRepositoryInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\Catalog\Api\ProductRepositoryInterface;
+
+/** @var ObjectManagerInterface $objectManager */
+$objectManager = Bootstrap::getObjectManager();
+/** @var WebsiteRepositoryInterface $websiteRepository */
+$websiteRepository = $objectManager->get(WebsiteRepositoryInterface::class);
+$baseWebsiteId = $websiteRepository->get('base')->getId();
+
+$productFactory = $objectManager->get(ProductInterfaceFactory::class);
+$product = $productFactory->create();
+$product->setTypeId(Type::TYPE_SIMPLE)
+    ->setAttributeSetId($product->getDefaultAttributeSetId())
+    ->setWebsiteIds([$baseWebsiteId])
+    ->setName('Простий продукт')
+    ->setSku('Продукт')
+    ->setDescription('Повний опис продукту')
+    ->setShortDescription('Короткий опис')
+    ->setPrice(10)
+    ->setTaxClassId(0)
+    ->setVisibility(Visibility::VISIBILITY_BOTH)
+    ->setStatus(Status::STATUS_ENABLED)
+    ->setStockData(
+        [
+            'qty' => 100,
+            'is_in_stock' => 1,
+            'manage_stock' => 1,
+        ]
+    );
+/** @var ProductRepositoryInterface $productRepository */
+$productRepository = $objectManager->get(ProductRepositoryInterface::class);
+$productRepository->save($product);

dev/tests/integration/testsuite/Magento/Catalog/_files/simple_product_cyrillic_symbols_rollback.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Framework\Registry;
+use Magento\TestFramework\Helper\Bootstrap;
+
+/** @var Registry $registry */
+$registry = Bootstrap::getObjectManager()->get(Registry::class);
+
+$registry->unregister('isSecureArea');
+$registry->register('isSecureArea', true);
+
+/** @var ProductRepositoryInterface $productRepository */
+$productRepository = Bootstrap::getObjectManager()->get(ProductRepositoryInterface::class);
+
+try {
+    $product = $productRepository->get('Продукт', false, null, true);
+    $productRepository->delete($product);
+} catch (NoSuchEntityException $exception) {
+    //Product already removed
+}
+
+$registry->unregister('isSecureArea');
+$registry->register('isSecureArea', false);