bug#65805: 30.0.50; quoted-insert doesn't work in zap-to-char

[Juri Linkov]

> AFAICT it would also make it unnecessary to use
> `read-char-from-minibuffer-insert-char`.
>
> @@ -3733,7 +3733,14 @@ read-char-from-minibuffer
>                  read-char-from-minibuffer-map))
>           ;; Protect this-command when called from pre-command-hook 
> (bug#45029)
>           (this-command this-command)
> -         (result (progn
> +         (result (minibuffer-with-setup-hook
> +                     (lambda ()
> +                       (add-hook 'post-command-hook
> +                                 (lambda ()
> +                                   (if (= (1+ (minibuffer-prompt-end))
> +                                          (point-max))
> +                                       (exit-minibuffer)))
> +                                 'local))

I have a patch where exit-minibuffer in read-char-from-minibuffer-map
is bound to a new command that ensures that the minibuffer contains
exactly 1 character before exiting.  But need more testing to see
what is better.