From 03298b3b2f322ca0bebc423f906428718b31809a Mon Sep 17 00:00:00 2001
From: Claudio Zambon <claudio.zambon@webformat.com>
Date: Sun, 27 May 2018 11:47:33 +0200
Subject: [PATCH] Convert to string $option->getValue, in order to be compared
 with other saved options in previous cart items

---
 .../ConfigurableProduct/Model/Quote/Item/CartItemProcessor.php  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/ConfigurableProduct/Model/Quote/Item/CartItemProcessor.php b/app/code/Magento/ConfigurableProduct/Model/Quote/Item/CartItemProcessor.php
index 4450bbd75e574..85493b81bc6d4 100644
--- a/app/code/Magento/ConfigurableProduct/Model/Quote/Item/CartItemProcessor.php
+++ b/app/code/Magento/ConfigurableProduct/Model/Quote/Item/CartItemProcessor.php
@@ -69,7 +69,7 @@ public function convertToBuyRequest(CartItemInterface $cartItem)
             if (is_array($options)) {
                 $requestData = [];
                 foreach ($options as $option) {
-                    $requestData['super_attribute'][$option->getOptionId()] = $option->getOptionValue();
+                    $requestData['super_attribute'][$option->getOptionId()] = (string) $option->getOptionValue();
                 }
                 return $this->objectFactory->create($requestData);
             }