RE: New multi-command facility displays in the wrong echo area.

[Drew Adams]

> make isearch signal
> an error in that case.  You'd get an error if isearch used a minibuffer
> (because it'd be a recursive minibuffer which are disallowed by
> default), and whether isearch uses a minibuffer or not is (to a large
> extent) an internal implementation detail.

Not sure it's the same thing, but if you're also saying
that it should be an error to use a recursive _edit_
during Isearch then I disagree with that.

I have Isearch keys that open a recursive edit.

(And a recursive edit could use a minibuffer and even
recursive minibuffers.)