When making edits with VisualEditor, HTML and Wikitext is sometimes added to the page, replacing parts of the content. Example of this behaviour: P6720. The added HTML starts at line 95.
This occurs on a MediaWiki installation running on a Windows server. Versions:
* MediaWiki 1.30.0
* VisualEditor 0.1.0 (61f161a)
Example diffs (not accessible without login):
* http://vpsamv-p-srv01.samverkan.su.se/mediawiki/index.php?title=Samsyn:Introduktion_till_Samsyns_wiki&diff=prev&oldid=228
* http://vpsamv-p-srv01.samverkan.su.se/mediawiki/index.php?title=Samsyn%3ARedigera_wikitext&type=revision&diff=380&oldid=379
The unexpected text is **not visible when editing with VE**, but instantly from published changes.
There are errors related to this change in the parsoid log, starting from line 205 in P6721