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

--- Pricing/Price/LowestPriceOptionsProvider.php	2017-09-13 14:07:42.000000000 +0300
+++ Pricing/Price/LowestPriceOptionsProvider.php	2017-11-14 14:38:24.654543124 +0300
@@ -63,7 +63,9 @@
             );
 
             $this->productsMap[$product->getId()] = $this->collectionFactory->create()
-                ->addAttributeToSelect(['price', 'special_price'])
+                ->addAttributeToSelect(
+                    ['price', 'special_price', 'special_from_date', 'special_to_date', 'tax_class_id']
+                )
                 ->addIdFilter($productIds)
                 ->getItems();
         }