From c0c04ffa3e34973df811bfbc2c9c7e480d666cd6 Mon Sep 17 00:00:00 2001
From: Yaroslav Rogoza <enarc@atwix.com>
Date: Wed, 8 May 2019 12:28:44 +0200
Subject: [PATCH] Return cart item error message as a string

---
 app/code/Magento/QuoteGraphQl/Model/Cart/UpdateCartItem.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/QuoteGraphQl/Model/Cart/UpdateCartItem.php b/app/code/Magento/QuoteGraphQl/Model/Cart/UpdateCartItem.php
index ac9b464eb01b0..81ed4f23c4414 100644
--- a/app/code/Magento/QuoteGraphQl/Model/Cart/UpdateCartItem.php
+++ b/app/code/Magento/QuoteGraphQl/Model/Cart/UpdateCartItem.php
@@ -74,7 +74,7 @@ public function execute(Quote $cart, int $cartItemId, float $qty, array $customi
         if ($result->getHasError()) {
             throw new GraphQlInputException(__(
                 'Could not update cart item: %message',
-                ['message' => $result->getMessage()]
+                ['message' => $result->getMessage(true)]
             ));
         }
     }