ACP2E-860: The attribute values are storing correctly only if it's 'Show Company' property is 'Optional' for 'Main Website' for Multistore

 - Added the test coverage.

Author: devarul

app/code/Magento/Sales/Controller/Adminhtml/Order/Create/LoadBlock.php

@@ -61,6 +61,9 @@ public function __construct(
      * Loading page block
      *
      * @return \Magento\Backend\Model\View\Result\Redirect|\Magento\Framework\Controller\Result\Raw
+     *
+     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
+     * @SuppressWarnings(PHPMD.NPathComplexity)
      */
     public function execute()
     {

dev/tests/integration/testsuite/Magento/Sales/Block/Adminhtml/Order/View/AddressInfoTest.php

@@ -0,0 +1,74 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Sales\Block\Adminhtml\Order\View;
+
+use Magento\Config\Model\Config\Factory;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Sales\Model\Order;
+use Magento\Store\Model\StoreManagerInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\Sales\Model\Order\Address\Renderer as OrderAddressRenderer;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Test class for \Magento\Sales\Block\Adminhtml\Order\View\AddressInfo
+ */
+class AddressInfoTest extends TestCase
+{
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var OrderAddressRenderer
+     */
+    private $orderAddressRenderer;
+
+    /**
+     * Set up
+     */
+    protected function setUp(): void
+    {
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->orderAddressRenderer = $this->objectManager->get(OrderAddressRenderer::class);
+    }
+
+    /**
+     * Verify customer address attributes (e.g. Company) are visible on second website order.
+     *
+     * @magentoDataFixture Magento/Store/_files/second_website_with_store_group_and_store.php
+     * @magentoDataFixture Magento/Sales/_files/order_on_second_website.php
+     * @magentoAppArea adminhtml
+     * @magentoDbIsolation disabled
+     * @magentoAppIsolation enabled
+     */
+    public function testCompanyAddressAttributeVisibleForOrderOnSecondWebsite()
+    {
+        $storeManager = $this->objectManager->get(StoreManagerInterface::class);
+        $website = $storeManager->getWebsites(false, true)['base'];
+        $configData = [
+            'section' => 'customer',
+            'website' => $website->getId(),
+            'store' => null,
+            'groups' => [
+                'address' => [
+                    'fields' => [
+                        'company_show' => ['value' => ''],
+                    ],
+                ],
+            ],
+        ];
+        $configFactory = $this->objectManager->get(Factory::class);
+        $config = $configFactory->create(['data' => $configData]);
+        $config->save();
+        $orderFixtureStore = $this->objectManager->create(Order::class)->loadByIncrementId('100000001');
+        $address = $orderFixtureStore->getBillingAddress();
+        self::assertStringContainsString('Test Company', $this->orderAddressRenderer->format($address, 'html'));
+    }
+}