bug#38851: 27.0.50; Recent my patch breaks isearch with macOS native input method

[Alan Third]

On Thu, Jan 02, 2020 at 03:25:13AM +0900, tsuucat via Bug reports for GNU 
Emacs, the Swiss army knife of text editors wrote:
> I sent a patch for Bug#23412 and the patch was already merged.
> (http://git.savannah.gnu.org/cgit/emacs.git/commit/?h=emacs-27&id=ba042176d8931cdf9441b3b4919ec74b75019494)
> 
> Unfortunately, the patch breaks isearch with macOS native input method.
> I tried to modify ns-echo-working-text function and ns-delete-working-text
> function, but I cannot do it.
> This is because input-pending-p now returns t after pressing RET to confirm 
> the conversion. (isearch-update function uses input-pending-p)
> 
> The following patch treats ns-unput-working-text event by deleteWorkingText 
> specially in read_char(). This solve the problem.

Thanks. I have no better ideas, so this will have to do. Does anyone
else have any opinions?
-- 
Alan Third