Example change: https://gerrit.wikimedia.org/r/536137
Example log: https://integration.wikimedia.org/ci/job/quibble-vendor-mysql-php72-docker/19112/console
13:44:29 Invalid argument supplied for foreach() 13:44:29 13:44:29 /workspace/src/includes/Permissions/PermissionManager.php:1373 13:44:29 /workspace/src/includes/Permissions/PermissionManager.php:1271 13:44:29 /workspace/src/includes/Permissions/PermissionManager.php:1216 13:44:29 /workspace/src/includes/specialpage/SpecialPage.php:297 13:44:29 /workspace/src/includes/specialpage/SpecialPage.php:316 13:44:29 /workspace/src/includes/specialpage/SpecialPage.php:623 13:44:29 /workspace/src/extensions/WikibaseLexeme/src/MediaWiki/Specials/SpecialNewLexeme.php:94 13:44:29 /workspace/src/tests/phpunit/includes/specials/SpecialPageExecutor.php:108 13:44:29 /workspace/src/tests/phpunit/includes/specials/SpecialPageExecutor.php:36 13:44:29 /workspace/src/tests/phpunit/includes/specials/SpecialPageTestBase.php:70 13:44:29 /workspace/src/extensions/WikibaseLexeme/tests/phpunit/mediawiki/Specials/SpecialNewLexemeTest.php:124 13:44:29 /workspace/src/tests/phpunit/MediaWikiIntegrationTestCase.php:454 13:44:29 /workspace/src/maintenance/doMaintenance.php:99
Happens three times, all in SpecialNewLexemeTest (L104, L113, L124).
I suspect it’s due to I2341e6f1d1 (part of T220191).