I have several autoedit buttons on a template. I just turned on debug mode for other reasons and got the following message:
Deprecated: Use of ParserOutput::preventClickjacking was deprecated in MediaWiki 1.38. [Called from PFAutoEdit::run in /home/<wikidir>/extensions/PageForms/includes/parserfunctions/PF_AutoEdit.php at line 27] in /home/<wikidir>/includes/debug/MWDebug.php on line 381
MediaWiki: 1.39.0
PHP: 8.0.12