User blog comment:Sarah Manley/Try the New Wikia Editor/@comment-5473581-20110830235134/@comment-126761-20110831121631

The edit summary is an interesting one: we made that change to give more text space, but we know it killed autocomplete (oh, the fun of browsers), and this can be annoying. It's something we're still looking at, because I'd certainly like to bring them back.

One thing we're looking at doing is moving the section edit title text (the stuff like ) out of the box somehow, which should help with the space issue and make it easier to return it to a single line box.