As reported on
https://en.wikipedia.org/w/index.php?title=MediaWiki_talk:Common.css&oldid=508829963#Unexpected_behavior
for some reason, MediaWiki mess up the HTML code when the MediaWiki:Recentchangestext page is added to the top of the Special:RecentChanges, and this breaks some CSS formatting.
There should be a line break between "</li>" and "<li>".
Version: unspecified
Severity: normal
URL: https://test.wikipedia.org/w/index.php?diff=prev&oldid=140930&diffonly=1
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=35806
https://bugzilla.wikimedia.org/show_bug.cgi?id=56809