Last modified: 2011-03-13 18:06:00 UTC
If you enter a "diff" URL that specifies revisions from two different pages, the MediaWiki software will generate a diff between them. Steps to reproduce: Visit a URL such as http://en.wikipedia.org/w/index.php?title=Wikipedia_talk:Bots&diff=36063763&oldid=879 What happens: MediaWiki generates a "diff" page between an ancient revision of the "Sport" article and a recent revision of the "Wikipedia talk:Bots" page. What should happen: MediaWiki should generate a very polite error message.
This is intended behavior.
Addition to comment #1: > This is intended behavior. minor issues reported at: Bug 2455: correct navigation links for diffs between two different pages and Bug 3957: restructure the code to evaluate ?title=foo&oldid=nnnn ; allow ?oldid=nnnn without title