"Steve Bennett"
I think the behaviour where the saved text is not what you actually typed ought to be kept to a minimum. At current I know of that happening in two instances: ~~~~ (and variants) and [[Foo (blah)|]], which is replaced by [[Foo (blah)|Foo]]. It's kind of surprising to the user...
Steve
I agree it's annoying, tried to improve a mesage saying: You can't add this category: it's a redirect. uh..