Running the Cognate tests I get:
```
1) Cognate\Tests\CognateIntegrationTest::testCreateDeleteAndRestorePageResultsInEntry
InvalidArgumentException: The given Title does not belong to page ID 2 but actually belongs to 4
includes/Storage/RevisionStoreRecord.php:99
includes/Storage/RevisionStore.php:586
includes/Storage/RevisionStore.php:476
includes/libs/rdbms/database/Database.php:3731
includes/Storage/RevisionStore.php:478
includes/page/PageArchive.php:776
includes/page/PageArchive.php:506
extensions/Cognate/tests/phpunit/CognateIntegrationTest.php:97
tests/phpunit/MediaWikiTestCase.php:469
maintenance/doMaintenance.php:94
```
Found locally with SQLite as a backend and the experimental CI job `quibble-vendor-mysql-php70-docker` fails similarly (eg on https://gerrit.wikimedia.org/r/#/c/mediawiki/extensions/Cognate/+/447052/ ).