Subject: bug#57986: 29.0.50; Citation prefix lost when message-newline-and-reformat

From: Sean Whitton <[email-masked]>
Date: Wed, 21 Sep 2022 11:34:14 -0700

In emacs -q, C-x m and put this text in the buffer:

--8<---------------cut here---------------start------------->8---
> This is some.
>
> This is more.  This is more.  This is more.  This is more.  This is more.
> This is more.  This is more.
--8<---------------cut here---------------end--------------->8---

Move point to the beginning of the second line.  M-RET.

Expected:

--8<---------------cut here---------------start------------->8---
> This is some.

> 
> This is more.  This is more.  This is more.  This is more.  This is
> more.  This is more.  This is more.
--8<---------------cut here---------------end--------------->8---

Actual:

--8<---------------cut here---------------start------------->8---
> This is some.

>
> This is more.  This is more.  This is more.  This is more.  This is
more.
> This is more.  This is more.
--8<---------------cut here---------------end--------------->8---

The problem, in particular, is how "more" becomes unquoted.

-- 
Sean Whitton