Patch-Magento_Configurable-M2.1.6-lowest-price-provider-v2.patch

--- Pricing/Price/LowestPriceOptionsProvider.php	2017-09-13 14:07:42.000000000 +0300
+++ Pricing/Price/LowestPriceOptionsProvider.php	2017-12-18 12:23:37.439775641 +0300
@@ -9,6 +9,7 @@
 use Magento\Catalog\Model\ResourceModel\Product\LinkedProductSelectBuilderInterface;
 use Magento\Framework\App\ResourceConnection;
 use Magento\Catalog\Model\ResourceModel\Product\CollectionFactory;
+use Magento\Store\Model\StoreManagerInterface;

 /**
  * Retrieve list of products where each product contains lower price than others at least for one possible price type
@@ -38,6 +39,11 @@
     private $productsMap;

     /**
+     * @var StoreManagerInterface
+     */
+    private $storeManager;
+
+    /**
      * @param ResourceConnection $resourceConnection
      * @param LinkedProductSelectBuilderInterface $linkedProductSelectBuilder
      * @param CollectionFactory $collectionFactory
@@ -45,11 +51,13 @@
     public function __construct(
         ResourceConnection $resourceConnection,
         LinkedProductSelectBuilderInterface $linkedProductSelectBuilder,
-        CollectionFactory $collectionFactory
+        CollectionFactory $collectionFactory,
+        StoreManagerInterface $storeManager
     ) {
         $this->resource = $resourceConnection;
         $this->linkedProductSelectBuilder = $linkedProductSelectBuilder;
         $this->collectionFactory = $collectionFactory;
+        $this->storeManager = $storeManager;
     }

     /**
@@ -57,16 +65,19 @@
      */
     public function getProducts(ProductInterface $product)
     {
-        if (!isset($this->productsMap[$product->getId()])) {
+        $key = $this->storeManager->getStore()->getId() . '-' . $product->getId();
+        if (!isset($this->productsMap[$key])) {
             $productIds = $this->resource->getConnection()->fetchCol(
                 '(' . implode(') UNION (', $this->linkedProductSelectBuilder->build($product->getId())) . ')'
             );

-            $this->productsMap[$product->getId()] = $this->collectionFactory->create()
-                ->addAttributeToSelect(['price', 'special_price'])
+            $this->productsMap[$key] = $this->collectionFactory->create()
+                ->addAttributeToSelect(
+                    ['price', 'special_price', 'special_from_date', 'special_to_date', 'tax_class_id']
+                )
                 ->addIdFilter($productIds)
                 ->getItems();
         }
-        return $this->productsMap[$product->getId()];
+        return $this->productsMap[$key];
     }
 }