MAGETWO-93628: Shopping cart is emptied after reset password procedure

Author: dhorytskyi

app/code/Magento/Customer/Model/AccountManagement.php

@@ -1070,7 +1070,10 @@ public function validate(CustomerInterface $customer)
         $result = $this->getEavValidator()->isValid($customerModel);
         if ($result === false && is_array($this->getEavValidator()->getMessages())) {
             return $validationResults->setIsValid(false)->setMessages(
-                array_merge(...$this->getEavValidator()->getMessages())
+                call_user_func_array(
+                    'array_merge',
+                    $this->getEavValidator()->getMessages()
+                )
             );
         }
         return $validationResults->setIsValid(true)->setMessages([]);