MAGETWO-35620: Implement Observer

Author: Dmytro Voskoboinikov

app/code/Magento/Sales/Controller/Adminhtml/Order/Creditmemo/Save.php

@@ -89,10 +89,9 @@ public function execute()
                     );
 
                     $creditmemo->setCustomerNote($data['comment_text']);
+                    $creditmemo->setCustomerNoteNotify(isset($data['comment_customer_notify']));
                 }
 
-                $creditmemo->setCustomerNoteNotify(isset($data['comment_customer_notify']));
-
                 if (isset($data['do_refund'])) {
                     $creditmemo->setRefundRequested(true);
                 }

app/code/Magento/Sales/Controller/Adminhtml/Order/Invoice/Save.php

@@ -155,10 +155,9 @@ public function execute()
                 );
 
                 $invoice->setCustomerNote($data['comment_text']);
+                $invoice->setCustomerNoteNotify(isset($data['comment_customer_notify']));
             }
 
-            $invoice->setCustomerNoteNotify(isset($data['comment_customer_notify']));
-
             $invoice->register();
 
             $invoice->getOrder()->setCustomerNoteNotify(!empty($data['send_email']));

app/code/Magento/Shipping/Controller/Adminhtml/Order/Shipment/Save.php

@@ -108,10 +108,9 @@ public function execute()
                 );
 
                 $shipment->setCustomerNote($data['comment_text']);
+                $shipment->setCustomerNoteNotify(isset($data['comment_customer_notify']));
             }
 
-            $shipment->setCustomerNoteNotify(isset($data['comment_customer_notify']));
-
             $shipment->register();
 
             $shipment->getOrder()->setCustomerNoteNotify(!empty($data['send_email']));