Author: wojciech.r
Description:
When I edit existing content in <source> tags, while editing it, error is shown about invalid language specified (lang=) and after saving it puts fragment of HTML code of this tag divs and entities into source of page and my code is broken.
https://www.mediawiki.org/w/index.php?title=VisualEditor:Test&oldid=773552
Version: unspecified
Severity: major