#36636 - prevent ShippingAssignmentBuilder and ShippingBuilder from loading order when not needed.

Author: Nuranto

app/code/Magento/Sales/Model/Order/ShippingBuilder.php

@@ -74,6 +74,14 @@ public function setOrder(OrderInterface $order)
         $this->order = $order;
     }
 
+    /**
+     * @return OrderInterface
+     */
+    private function getOrder()
+    {
+        return $this->order;
+    }
+
     /**
      * @return ShippingInterface|null
      */