Steps to replicate the issue (include links if applicable):
What happens?:
- The page summary appears multiple times. In this case the page summary is at: https://meta.wikimedia.org/wiki/MediaWiki:Translatorsignup-summary
What should have happened instead?:
- The page summary should only appear once
Software version (skip for WMF-hosted wikis like Wikipedia):
- MediaWiki 1.41.0-wmf.3
- TranslatorSignup 1.41.0-wmf.3
Other information (browser name/version, screenshots, etc.):
This patch was submitted to fix the issue: https://gerrit.wikimedia.org/r/c/mediawiki/extensions/TranslationNotifications/+/906614/1
But with that patch in place on my local machine I now see translationnotifications-text[1] added to the header.
Calling $form->setHeaderHtml( '' ); fixes the issue.