It seems that when parsing the sitenotice, the page it's shown on top of is used as parsing context (for {{PAGENAME}} etc.). I know you can't count on {{PAGENAME}} and friends to be meaningful in the sitenotice due to heavy caching, but there are more problems with parsing in the context of a random title:
- Subpage links like /foo don't point to [[MediaWiki:Sitenotice/foo]] but to [[Somerandompage/foo]] (if subpages are even enabled in the namespace in question)
- Links to other pages will show up as selflinks if it so happens that the sitenotice was reparsed while on top of the target page. This happened on fiwiki today
Version: 1.16.x
Severity: normal