MAGETWO-92195: Wrong order request flow

Author: roman

app/code/Magento/Sales/Controller/Adminhtml/Order/MassHold.php

@@ -5,6 +5,7 @@
  */
 namespace Magento\Sales\Controller\Adminhtml\Order;
 
+use Magento\Framework\App\Action\HttpPostActionInterface;
 use Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection;
 use Magento\Backend\App\Action\Context;
 use Magento\Ui\Component\MassAction\Filter;
@@ -14,7 +15,7 @@
 /**
  * Class MassHold
  */
-class MassHold extends \Magento\Sales\Controller\Adminhtml\Order\AbstractMassAction
+class MassHold extends \Magento\Sales\Controller\Adminhtml\Order\AbstractMassAction implements HttpPostActionInterface
 {
     /**
      * Authorization level of a basic admin session

app/code/Magento/Sales/Controller/Adminhtml/Order/MassUnhold.php

@@ -5,13 +5,19 @@
  */
 namespace Magento\Sales\Controller\Adminhtml\Order;
 
+use Magento\Framework\App\Action\HttpPostActionInterface;
 use Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection;
 use Magento\Backend\App\Action\Context;
 use Magento\Ui\Component\MassAction\Filter;
 use Magento\Sales\Model\ResourceModel\Order\CollectionFactory;
 use Magento\Sales\Api\OrderManagementInterface;
 
-class MassUnhold extends AbstractMassAction
+/**
+ * Class MassUnhold
+ *
+ * @package Magento\Sales\Controller\Adminhtml\Order
+ */
+class MassUnhold extends AbstractMassAction implements HttpPostActionInterface
 {
     /**
      * Authorization level of a basic admin session
@@ -24,6 +30,8 @@ class MassUnhold extends AbstractMassAction
     private $orderManagement;
 
     /**
+     * Class constructor
+     *
      * @param Context $context
      * @param Filter $filter
      * @param CollectionFactory $collectionFactory