Description

When maybeUpdateImplementationRanking (in ApiPerformTest.php) runs on beta, and produces a new implementation-ordering with the same first element as the existing ordering, it should bail out with the following message, but most of the time it doesn't:

MediaWiki\Extension\WikiLambda\API\ApiPerformTest::maybeUpdateImplementationRanking Bailing: Same first element

To observe this: check the JSON for Z10020 to see that Z10033 is the first element; trigger the job as described in T332533; then, on logstash, look in the Editing Function to update Implementations order message to see that the new ordering also has Z10033 as the first element..

Desired behavior/Acceptance criteria

• The job should bail as described above, and UpdateImplementationsJob should not be instantiated at all

Completion checklist

• Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist