The Special:MultiLock page needs converting to Codex.

This form may be removed as part of T373388 or moved into GlobalBlocking to achieve T124607.

An intermediate step was taken in T397433: PHP Deprecated: Use of MediaWiki\Xml\Xml::radioLabel was deprecated in MediaWiki 1.42. [Called from MediaWiki\Extension\CentralAuth\Special\SpecialMultiLock::showStatusForm] to use legacy HTMLForm::factory( 'table' .