Hi there,

The 1.42.0-wmf.21 version of MediaWiki is once again blocked at group1 due to:

- https://phabricator.wikimedia.org/T359509: REST API calls suddenly all returning 400

A previous attempt at a fix didn't work: https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1009500

Thank you for your help resolving this issue!

-- Your distraught train conductor