User blog comment:Sarah Manley/Try the New Wikia Editor/@comment-1393830-20110621212830/@comment-126761-20110622114212

This isn't actually an overhaul of the visual mode editor: we make improvements to that on a continuous basis. Certainly, it shouldn't be breaking wikitext.

Wikitext is a surprisingly complex beast to render, mainly because it allows just soo much freedom (which is great). [This is an issue that the WikiMedia Foundation are looking at too]. Which means, tracking down bugs is often down to being able to create test cases from reports.

Which all means, reports with diffs (like posted above) are incredibly useful. If you have more please do send them along to Special:Contact, they should get passed on to me.