Set isSecureArea before deleting customer

Deletion of the customer is only possible if isSecureArea is true. If it is not set deletion will fail with an exception and the customer will not know why the registration failed and will not be able to register again due to the existing entity.

Author: DanieliMi

app/code/Magento/Customer/Model/AccountManagement.php

@@ -943,7 +943,15 @@ public function createAccountWithPasswordHash(CustomerInterface $customer, $hash
             }
             $this->customerRegistry->remove($customer->getId());
         } catch (InputException $e) {
+            $originalValue = $this->registry->registry('isSecureArea');
+            $this->registry->unregister('isSecureArea');
+            $this->registry->register('isSecureArea', true);
+
             $this->customerRepository->delete($customer);
+
+            $this->registry->unregister('isSecureArea');
+            $this->registry->register('isSecureArea', $originalValue);
+
             throw $e;
         }
         $customer = $this->customerRepository->getById($customer->getId());