bug#11439: Isearch and ucs-insert strangeness

[Chong Yidong]

Deniz Dogan <deniz@dogan.se> writes:

> C-r
> C-x 8 RET
> C-g
>
> At this point, we're back to normal.  Now let's try the same thing
> again:
>
> C-r
> C-x 8 RET ;; I think this is where something goes wrong.
> C-g
> C-g
>
> Notice how the mode line still says "Isearch", but we're actually not in
> isearch at all.

Fixed in trunk.  Thanks.