diff --git a/app/code/Magento/Catalog/Model/Product/Option/Repository.php b/app/code/Magento/Catalog/Model/Product/Option/Repository.php
index 2f39618ce4a2b..c2d7781b37ad8 100644
--- a/app/code/Magento/Catalog/Model/Product/Option/Repository.php
+++ b/app/code/Magento/Catalog/Model/Product/Option/Repository.php
@@ -172,7 +172,9 @@ public function save(\Magento\Catalog\Api\Data\ProductCustomOptionInterface $opt
             $originalValues = $persistedOption->getValues();
             $newValues = $option->getData('values');
             if ($newValues) {
-                $newValues = $this->markRemovedValues($newValues, $originalValues);
+                if (isset($originalValues)) {
+                    $newValues = $this->markRemovedValues($newValues, $originalValues);
+                }
                 $option->setData('values', $newValues);
             }
         }
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/RepositoryTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/RepositoryTest.php
index ad37e5bbe6eef..ec6aa9d8db83a 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/RepositoryTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/RepositoryTest.php
@@ -267,4 +267,29 @@ public function testSave()
         ]);
         $this->assertEquals($this->optionMock, $this->optionRepository->save($this->optionMock));
     }
+
+    public function testSaveWhenOptionTypeWasChanged()
+    {
+        $productSku = 'simple_product';
+        $optionId = 1;
+        $this->optionMock->expects($this->once())->method('getProductSku')->willReturn($productSku);
+        $this->productRepositoryMock
+            ->expects($this->once())
+            ->method('get')
+            ->with($productSku)
+            ->willReturn($this->productMock);
+        $this->optionMock->expects($this->any())->method('getOptionId')->willReturn($optionId);
+        $this->productMock->expects($this->once())->method('getOptions')->willReturn([]);
+        $this->optionMock->expects($this->once())->method('getData')->with('values')->willReturn([
+            ['option_type_id' => 4],
+            ['option_type_id' => 5]
+        ]);
+        $optionCollection = $this->getMockBuilder(\Magento\Catalog\Model\ResourceModel\Product\Option\Collection::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $optionCollection->expects($this->once())->method('getProductOptions')->willReturn([$this->optionMock]);
+        $this->optionCollectionFactory->expects($this->once())->method('create')->willReturn($optionCollection);
+        $this->optionMock->expects($this->once())->method('getValues')->willReturn(null);
+        $this->assertEquals($this->optionMock, $this->optionRepository->save($this->optionMock));
+    }
 }
diff --git a/app/code/Magento/Newsletter/Model/Subscriber.php b/app/code/Magento/Newsletter/Model/Subscriber.php
index ac5563f56801c..7847098083949 100644
--- a/app/code/Magento/Newsletter/Model/Subscriber.php
+++ b/app/code/Magento/Newsletter/Model/Subscriber.php
@@ -554,6 +554,9 @@ protected function _updateCustomerSubscription($customerId, $subscribe)
             } elseif ($isConfirmNeed) {
                 $status = self::STATUS_NOT_ACTIVE;
             }
+        } elseif (($this->getStatus() == self::STATUS_UNCONFIRMED) && ($customerData->getConfirmation() === null)) {
+            $status = self::STATUS_SUBSCRIBED;
+            $sendInformationEmail = true;
         } else {
             $status = self::STATUS_UNSUBSCRIBED;
         }
diff --git a/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php b/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php
index 52b087cf0a0e5..7716f4744a922 100644
--- a/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php
+++ b/app/code/Magento/Newsletter/Test/Unit/Model/SubscriberTest.php
@@ -273,6 +273,35 @@ public function testSubscribeCustomerById1()
         $this->assertEquals(\Magento\Newsletter\Model\Subscriber::STATUS_NOT_ACTIVE, $this->subscriber->getStatus());
     }
 
+    public function testSubscribeCustomerByIdAfterConfirmation()
+    {
+        $customerId = 1;
+        $customerDataMock = $this->getMockBuilder(\Magento\Customer\Api\Data\CustomerInterface::class)
+            ->getMock();
+        $this->customerRepository->expects($this->atLeastOnce())
+            ->method('getById')
+            ->with($customerId)->willReturn($customerDataMock);
+        $this->resource->expects($this->atLeastOnce())
+            ->method('loadByCustomerData')
+            ->with($customerDataMock)
+            ->willReturn(
+                [
+                    'subscriber_id' => 1,
+                    'subscriber_status' => 4
+                ]
+            );
+        $customerDataMock->expects($this->atLeastOnce())->method('getId')->willReturn('id');
+        $this->resource->expects($this->atLeastOnce())->method('save')->willReturnSelf();
+        $customerDataMock->expects($this->once())->method('getStoreId')->willReturn('store_id');
+        $customerDataMock->expects($this->once())->method('getEmail')->willReturn('email');
+        $this->sendEmailCheck();
+        $this->customerAccountManagement->expects($this->never())->method('getConfirmationStatus');
+        $this->scopeConfig->expects($this->atLeastOnce())->method('getValue')->with()->willReturn(true);
+
+        $this->subscriber->updateSubscription($customerId);
+        $this->assertEquals(\Magento\Newsletter\Model\Subscriber::STATUS_SUBSCRIBED, $this->subscriber->getStatus());
+    }
+
     public function testUnsubscribe()
     {
         $this->resource->expects($this->once())->method('save')->willReturnSelf();