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

From: Lars Ingebrigtsen <[email-masked]>
Date: Fri, 23 Sep 2022 18:21:02 +0200

Sean Whitton <[email-masked]> writes:

> In emacs -q, C-x m and put this text in the buffer:
>
>> This is some.
>>
>> This is more.  This is more.  This is more.  This is more.  This is more.
>> This is more.  This is more.
>
> Move point to the beginning of the second line.  M-RET.

[...]

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

`M-RET' uses the text before point as the prefix, so if you `M-RET' at
the end of the second line, you get

---
> This is some.

> 
> This is more.  This is more.  This is more.  This is more.  This is
> more.  This is more.  This is more.
---

which is what we're aiming for.  So I'm not sure whether this is a
bug -- I think this is what it's meant to do.  But perhaps it should be
documented better?