ACP2E-982: Assignment of sources changes after importing data

Author: pradeep1819

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

@@ -227,7 +227,7 @@ class Product extends AbstractEntity
      * Links attribute name-to-link type ID.
      *
      * @deprecated 101.1.0 use DI for LinkProcessor class if you want to add additional types
-     * @see It is possible to supply additional link types via DI
+     *
      * @var array
      */
     protected $_linkNameToId = [
@@ -548,7 +548,6 @@ class Product extends AbstractEntity
     /**
      * @var \Magento\CatalogInventory\Model\ResourceModel\Stock\ItemFactory
      * @deprecated 101.0.0 this variable isn't used anymore.
-     * @see avoid using this variable
      */
     protected $_stockResItemFac;
 
@@ -614,7 +613,6 @@ class Product extends AbstractEntity
      * @var array
      * @deprecated 100.0.3
      * @since 100.0.3
-     * @see avoid using this variable
      */
     protected $productUrlKeys = [];
 
@@ -1282,7 +1280,6 @@ protected function _prepareRowForDb(array $rowData)
      * Must be called after ALL products saving done.
      *
      * @deprecated 101.1.0 use linkProcessor Directly
-     * @see \Magento\CatalogImportExport\Model\Import\Product\linkProcessor::saveLinks
      *
      * @return $this
      */
@@ -1492,7 +1489,6 @@ private function getNewSkuFieldsForSelect()
      * @return void
      * @since 100.0.4
      * @deprecated 100.2.3
-     * @see avoid using this function
      */
     protected function initMediaGalleryResources()
     {
@@ -2340,7 +2336,6 @@ protected function _saveStockItem()
                     $stockItem = $this->getRowExistingStockItem($rowData);
                     $existingStockItemData = $stockItem->getData();
                     $row = $this->formatStockDataForRow($rowData);
-                    $row['explicit_qty'] = array_key_exists('qty', $rowData);
                     $productIdsToReindex[] = $row['product_id'];
                     $storeId = $this->getRowStoreId($rowData);
                     if (!empty(array_diff_assoc($row, $existingStockItemData))

app/code/Magento/CatalogImportExport/Model/StockItemImporter.php

@@ -50,8 +50,8 @@ public function import(array $stockData)
         $entityTable = $stockItemResource->getMainTable();
         try {
             $stockImportData = array_map(
-                static function ($stockItemData) {
-                    unset($stockItemData['sku'], $stockItemData['explicit_qty']);
+                function ($stockItemData) {
+                    unset($stockItemData['sku']);
                     return $stockItemData;
                 },
                 array_values($stockData)