bug#9972: 24.0.90; "C-s/C-r" from the minibuffer don't clear the current text

[Juri Linkov]

> BTW, if the minibuffer and the echo area were each in its own window,
> Isearch could work in the minibuffer *exactly* like it does in any
> other buffer, i.e.:
> * Using the echo area to show the Isearch prompt and current search string.
> * Using the (mini)buffer to show (and navigate through) the matches,
> without altering its current prompt.
>
> Therefore, the fact that the minibuffer and the echo area share the
> same window is unfortunate in this case.

Exactly.  There were several discussions about related problems for other
similar cases, such as http://thread.gmane.org/gmane.emacs.devel/107802