Elias Mårtenson <lokedhs@gmail.com> writes:

>  It's like it's fine if you're typing in lower case characters for them
>  to match upper case, too, but if you've bothered to type an upper case
>  character, then you probably don't want lower case characters to match.
>
> This is how Emacs behaves today, is it not?

Yes, and that's my point.  I'd expect character folding when doing
searches to work in an analogous fashion: If I type `C-s é', I would be
surprised if it found "e", but not the other way around.