https://gerrit.wikimedia.org/r/c/mediawiki/extensions/MassMessage/+/449395 (i18n update) fails on submit.
See https://integration.wikimedia.org/ci/job/quibble-vendor-mysql-hhvm-docker/9212/console :
1) MediaWiki\MassMessage\ApiEditMassMessageListTest::testAdd BadMethodCallException: Call to a member function getCanonicalServer() on a non-object (null) extensions/MassMessage/includes/DatabaseLookup.php:29 includes/libs/objectcache/WANObjectCache.php:1242 includes/libs/objectcache/WANObjectCache.php:1115 extensions/MassMessage/includes/DatabaseLookup.php:36 extensions/MassMessage/includes/content/MassMessageListContent.php:324 extensions/MassMessage/includes/content/MassMessageListContent.php:185 includes/content/AbstractContent.php:516 includes/Storage/DerivedPageDataUpdater.php:1240 includes/Storage/DerivedPageDataUpdater.php:1263 includes/Storage/PageUpdater.php:697 includes/page/WikiPage.php:1855 extensions/MassMessage/tests/phpunit/api/ApiEditMassMessageListTest.php:24 tests/phpunit/MediaWikiTestCase.php:469 maintenance/doMaintenance.php:94
All tests contain the same error message: BadMethodCallException: Call to a member function getCanonicalServer() on a non-object (null).