ImportExportRepository::updateMultiple() changes subscribers by running MySQL queries directly. Now that \MailPoet\Segments\WP uses Doctrine as well this was causing a bug caught by our integration tests. ``` MailPoet\Subscribers\ImportExport\Import\ImportTest::testItSynchronizesWpUsers Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ -'mary' +'Mary' /wp-core/wp-content/plugins/mailpoet/tests/integration/Subscribers/ImportExport/Import/ImportTest.php:719 ``` https://app.circleci.com/pipelines/github/mailpoet/mailpoet/16386/workflows/c3fa0cf4-a77d-41ab-a5cc-78d4b37d9228/jobs/278066/tests#failed-test-0 This test was failing because the Doctrine entities were not updated after the import process ran and modified the subscribers directly in the database. Running EntityManager::clear() after importing the subscribers, forces Doctrine to query the database again to update the entities and prevents this bug. [MAILPOET-5752]