MAGETWO-90729: Imported products are incorrectly in stock if 'allow_backorders' enabled

Author: DianaRusin

app/code/Magento/CatalogImportExport/Model/Import/Product.php

@@ -15,6 +15,7 @@
 use Magento\Framework\App\ObjectManager;
 use Magento\Framework\Exception\LocalizedException;
 use Magento\Framework\Filesystem;
+use Magento\Framework\Intl\DateTimeFactory;
 use Magento\Framework\Model\ResourceModel\Db\ObjectRelationProcessor;
 use Magento\Framework\Model\ResourceModel\Db\TransactionManagerInterface;
 use Magento\Framework\Stdlib\DateTime;
@@ -724,6 +725,11 @@ class Product extends \Magento\ImportExport\Model\Import\Entity\AbstractEntity
      */
     private $mediaProcessor;
 
+    /**
+     * @var DateTimeFactory
+     */
+    private $dateTimeFactory;
+
     /**
      * @param \Magento\Framework\Json\Helper\Data $jsonHelper
      * @param \Magento\ImportExport\Helper\Data $importExportData
@@ -767,7 +773,7 @@ class Product extends \Magento\ImportExport\Model\Import\Entity\AbstractEntity
      * @param ImageTypeProcessor $imageTypeProcessor
      * @param MediaGalleryProcessor $mediaProcessor
      * @param StockItemImporterInterface|null $stockItemImporter
-     *
+     * @param DateTimeFactory $dateTimeFactory
      * @SuppressWarnings(PHPMD.ExcessiveParameterList)
      */
     public function __construct(
@@ -812,7 +818,8 @@ public function __construct(
         CatalogConfig $catalogConfig = null,
         ImageTypeProcessor $imageTypeProcessor = null,
         MediaGalleryProcessor $mediaProcessor = null,
-        StockItemImporterInterface $stockItemImporter = null
+        StockItemImporterInterface $stockItemImporter = null,
+        DateTimeFactory $dateTimeFactory = null
     ) {
         $this->_eventManager = $eventManager;
         $this->stockRegistry = $stockRegistry;
@@ -868,6 +875,7 @@ public function __construct(
             ->_initSkus()
             ->initImagesArrayKeys();
         $this->validator->init($this);
+        $this->dateTimeFactory = $dateTimeFactory ?? ObjectManager::getInstance()->get(DateTimeFactory::class);
     }
 
     /**
@@ -2873,8 +2881,8 @@ private function formatStockDataForRow(array $rowData): array
                 ? $row['is_in_stock']
                 : $this->stockStateProvider->verifyStock($stockItemDo);
             if ($this->stockStateProvider->verifyNotification($stockItemDo)) {
-                $row['low_stock_date'] =
-                gmdate(\Magento\Framework\Stdlib\DateTime::DATETIME_PHP_FORMAT, (new \DateTime())->getTimestamp());
+                $date = $this->dateTimeFactory->create('now', new \DateTimeZone('UTC'));
+                $row['low_stock_date'] = $date->format(\Magento\Framework\Stdlib\DateTime::DATETIME_PHP_FORMAT);
             }
             $row['stock_status_changed_auto'] = (int)!$this->stockStateProvider->verifyStock($stockItemDo);
         } else {