MC-29102: [2.4.x] [Magento Cloud] Customer receives newsletter unsubscription email after registering for new account

Author: DianaRusin

app/code/Magento/Newsletter/Controller/Ajax/Status.php

@@ -10,6 +10,7 @@
 use Magento\Framework\App\Action\HttpGetActionInterface;
 use Magento\Framework\Controller\Result\Json;
 use Magento\Framework\Controller\ResultFactory;
+use Magento\Framework\Exception\LocalizedException;
 use Magento\Framework\Validator\EmailAddress as EmailAddressValidator;
 use Magento\Newsletter\Model\GuestSubscriptionChecker;
 use Psr\Log\LoggerInterface;
@@ -67,7 +68,7 @@ public function execute()
             if (!empty($email) && $this->emailAddressValidator->isValid($email)) {
                 $response['subscribed'] = $this->guestSubscriptionChecker->isSubscribed($email);
             }
-        } catch (\Throwable $exception) {
+        } catch (LocalizedException | \DomainException $exception) {
             $this->logger->error($exception->getMessage());
             $response['errors'] = true;
         }

app/code/Magento/Newsletter/Test/Unit/Model/Plugin/CustomerPluginTest.php

@@ -124,7 +124,7 @@ public function testAfterSave(?int $originalStatus, ?bool $newValue, ?bool $expe
             ->method('loadByCustomer')
             ->with($customerId, $websiteId)
             ->willReturnSelf();
-        if ($originalStatus == Subscriber::STATUS_UNCONFIRMED) {
+        if ($originalStatus !== null && $originalStatus === Subscriber::STATUS_UNCONFIRMED) {
             $subscriber->method('getId')->willReturn(1);
         } else {
             $subscriber->expects($this->once())