bug#46033: up arrow in query replace should not step into the prompt

[reporter]

>
> This is a feature: it allows you to scroll through the text shown in
> the minibuffer, in case you want to edit it. Use M-p to go directly
> to the previous history.

I understand it's a feature, but as you see in the picture the prompt is
empty, and the full default replacement is visible.

In this case arrow should retrieve the previous history, instead of going
into the prompt, because there is nothing to scroll.