ACP2E-3233: Admin can still place order even without payment method

Author: Chhandak.Barua

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

@@ -281,9 +281,9 @@ protected function _processActionData($action = null)
         if ($paymentData = $this->getRequest()->getPost('payment')) {
             $this->_getOrderCreateModel()->getQuote()->getPayment()->addData($paymentData);
         } else {
-            $this->_getOrderCreateModel()->getQuote()->getPayment()->setMethod('');
+            $paymentData = array('method' => '');
+            $this->_getOrderCreateModel()->getQuote()->getPayment()->addData($paymentData);
         }
-
         $eventData = [
             'order_create_model' => $this->_getOrderCreateModel(),
             'request' => $this->getRequest()->getPostValue(),
@@ -296,7 +296,8 @@ protected function _processActionData($action = null)
         if ($paymentData = $this->getRequest()->getPost('payment')) {
             $this->_getOrderCreateModel()->getQuote()->getPayment()->addData($paymentData);
         } else {
-            $this->_getOrderCreateModel()->getQuote()->getPayment()->setMethod('');
+            $paymentData = array('method' => '');
+            $this->_getOrderCreateModel()->getQuote()->getPayment()->addData($paymentData);
         }
 
         /**