Sporadically (very rarely) the following happens
17:04:12 1) Wikibase\Lexeme\Tests\Merge\LexemeMergerTest::testGivenLexemesWithMultipleMatchingFormsFirstMatchMergedRestCopiedUnchanged 17:04:12 Wikibase\Lexeme\Merge\Exceptions\ConflictingLemmaValueException: 17:04:12 17:04:12 /workspace/src/extensions/WikibaseLexeme/src/Merge/LexemeMerger.php:73 17:04:12 /workspace/src/extensions/WikibaseLexeme/src/Merge/LexemeMerger.php:51 17:04:12 /workspace/src/extensions/WikibaseLexeme/tests/phpunit/composer/Merge/LexemeMergerTest.php:337 17:04:12 /workspace/src/maintenance/doMaintenance.php:94
e.g. https://integration.wikimedia.org/ci/job/quibble-vendor-mysql-php70-docker/8589/console
Maybe the random lemmas generated are too likely to be identical?
Also happened to 2 devs locally.