Fix "Confirmation request" email is sent on customer's newsletter unsubscription (issues/15218). Skip update customer subscribe status from save subscribe action from my account when nothing is changed.

Author: anvasiliev

app/code/Magento/Newsletter/Controller/Manage/Save.php

@@ -4,9 +4,11 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+
 namespace Magento\Newsletter\Controller\Manage;
 
 use Magento\Customer\Api\CustomerRepositoryInterface as CustomerRepository;
+use Magento\Newsletter\Model\Subscriber;
 
 class Save extends \Magento\Newsletter\Controller\Manage
 {
@@ -74,13 +76,29 @@ public function execute()
                 $customer = $this->customerRepository->getById($customerId);
                 $storeId = $this->storeManager->getStore()->getId();
                 $customer->setStoreId($storeId);
-                $this->customerRepository->save($customer);
-                if ((boolean)$this->getRequest()->getParam('is_subscribed', false)) {
-                    $this->subscriberFactory->create()->subscribeCustomerById($customerId);
-                    $this->messageManager->addSuccess(__('We saved the subscription.'));
+                $isSubscribedState = $customer->getExtensionAttributes()
+                    ->getIsSubscribed();
+                $isSubscribedParam = (boolean)$this->getRequest()
+                    ->getParam('is_subscribed', false);
+                if ($isSubscribedParam != $isSubscribedState) {
+                    $this->customerRepository->save($customer);
+                    if ($isSubscribedParam) {
+                        $subscribeModel = $this->subscriberFactory->create()
+                            ->subscribeCustomerById($customerId);
+                        $subscribeStatus = $subscribeModel->getStatus();
+                        if ($subscribeStatus == Subscriber::STATUS_SUBSCRIBED) {
+                            $this->messageManager->addSuccess(__('We saved the subscription.'));
+                        } else {
+                            $this->messageManager->addSuccess(__('The confirmation request has been sent.'));
+                        }
+                    } else {
+                        $this->subscriberFactory->create()
+                            ->unsubscribeCustomerById($customerId);
+                        $this->messageManager->addSuccess(__('We removed the subscription.'));
+                    }
                 } else {
-                    $this->subscriberFactory->create()->unsubscribeCustomerById($customerId);
-                    $this->messageManager->addSuccess(__('We removed the subscription.'));
+                    $this->_redirect('newsletter/manage/');
+                    return;
                 }
             } catch (\Exception $e) {
                 $this->messageManager->addError(__('Something went wrong while saving your subscription.'));

app/code/Magento/Newsletter/Model/Subscriber.php

@@ -568,7 +568,9 @@ protected function _updateCustomerSubscription($customerId, $subscribe)
             ) {
                 $status = self::STATUS_UNCONFIRMED;
             } elseif ($isConfirmNeed) {
-                $status = self::STATUS_NOT_ACTIVE;
+                if ($this->getStatus() != self::STATUS_SUBSCRIBED) {
+                    $status = self::STATUS_NOT_ACTIVE;
+                }
             }
         } elseif (($this->getStatus() == self::STATUS_UNCONFIRMED) && ($customerData->getConfirmation() === null)) {
             $status = self::STATUS_SUBSCRIBED;