Re: [PATCH] `completing-read`: Add `group-function` support to completion metadata (REVISED PATCH VERSION 2)

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Date: Sun, 09 May 2021 21:05:15 +0300
> Cc: Daniel Mendler <mail@daniel-mendler.de>,
>  Gregory Heytings <gregory@heytings.org>,
>  "emacs-devel@gnu.org" <emacs-devel@gnu.org>, Dmitry Gutov <dgutov@yandex.ru>
> 
> +(defcustom read-char-by-name-group-sort nil
> +  "How to sort groups of characters for `read-char-by-name' completion.
> +When t, sort sections of Unicode blocks alphabetically."

This doesn't say what happens if the value is not t.  And since the
first sentence says "How to sort...", the idea that the result is
unsorted group names doesn't come to mind naturally.