Doing a "recheck" solved this and maybe related to T207173?
12:59:54 There were 3 failures: 12:59:54 12:59:54 1) Flow\Tests\Collection\PostCollectionTest::testGetNextRevision 12:59:54 Failed asserting that null is an instance of class "Flow\Model\PostRevision". 12:59:54 12:59:54 /workspace/src/extensions/Flow/tests/phpunit/Collection/PostCollectionTest.php:110 12:59:54 /workspace/src/tests/phpunit/MediaWikiTestCase.php:424 12:59:54 /workspace/src/maintenance/doMaintenance.php:94 12:59:54 12:59:54 2) Flow\Tests\Collection\RevisionCollectionPermissionsTest::testPermissions with data set #0 ('confirmedUser', 'view', array(array(true), array(false), array(true))) 12:59:54 User UTFlowConfirmed should be allowed action view on revision new-post : new-post:true suppress-post:false restore-post:true : {"rev_id":"umvz4d2bul5qlhhx","rev_user_id":1,"rev_user_ip":null,"rev_user_wiki":"wikidb-unittest_","rev_parent_id":null,"rev_change_type":"new-post","rev_type":"post","rev_type_id":"umvz4d2buj6phfit","rev_content":"test content","rev_content_url":null,"rev_flags":"html","rev_mod_state":"","rev_mod_user_id":null,"rev_mod_user_ip":null,"rev_mod_user_wiki":null,"rev_mod_timestamp":null,"rev_mod_reason":null,"rev_last_edit_id":null,"rev_edit_user_id":null,"rev_edit_user_ip":null,"rev_edit_user_wiki":null,"rev_content_length":0,"rev_previous_content_length":0,"tree_parent_id":null,"tree_rev_descendant_id":"umvz4d2buj6phfit","tree_rev_id":"umvz4d2bul5qlhhx","tree_orig_user_id":1,"tree_orig_user_ip":null,"tree_orig_user_wiki":"wikidb-unittest_"} 12:59:54 Failed asserting that false matches expected true. 12:59:54 12:59:54 /workspace/src/extensions/Flow/tests/phpunit/Collection/RevisionCollectionPermissionsTest.php:201 12:59:54 /workspace/src/tests/phpunit/MediaWikiTestCase.php:424 12:59:54 /workspace/src/maintenance/doMaintenance.php:94 12:59:54 12:59:54 3) Flow\Tests\Collection\RevisionCollectionPermissionsTest::testPermissions with data set #4 ('confirmedUser', 'history', array(array(false), array(false))) 12:59:54 User UTFlowConfirmed should not be allowed action history on revision new-post : new-post:false suppress-post:false : {"rev_id":"umvz4e9mtvs3c5hx","rev_user_id":1,"rev_user_ip":null,"rev_user_wiki":"wikidb-unittest_","rev_parent_id":null,"rev_change_type":"new-post","rev_type":"post","rev_type_id":"umvz4e9mttt283it","rev_content":"test content","rev_content_url":null,"rev_flags":"html","rev_mod_state":"","rev_mod_user_id":null,"rev_mod_user_ip":null,"rev_mod_user_wiki":null,"rev_mod_timestamp":null,"rev_mod_reason":null,"rev_last_edit_id":null,"rev_edit_user_id":null,"rev_edit_user_ip":null,"rev_edit_user_wiki":null,"rev_content_length":0,"rev_previous_content_length":0,"tree_parent_id":null,"tree_rev_descendant_id":"umvz4e9mttt283it","tree_rev_id":"umvz4e9mtvs3c5hx","tree_orig_user_id":1,"tree_orig_user_ip":null,"tree_orig_user_wiki":"wikidb-unittest_"} 12:59:54 Failed asserting that true matches expected false. 12:59:54 12:59:54 /workspace/src/extensions/Flow/tests/phpunit/Collection/RevisionCollectionPermissionsTest.php:201 12:59:54 /workspace/src/tests/phpunit/MediaWikiTestCase.php:424 12:59:54 /workspace/src/maintenance/doMaintenance.php:94
Full log here: https://integration.wikimedia.org/ci/job/wmf-quibble-core-vendor-mysql-hhvm-docker/4748/console and triggered patch: https://gerrit.wikimedia.org/r/c/mediawiki/core/+/468553.