bug#31271: 25.2; exported deleted RMAIL emails should have theit deleted flag reset

[Eli Zaretskii <eliz@gnu.org>]

> Date: Mon, 04 Jun 2018 18:59:12 +0200
> From: Francesco Potortì <pot@gnu.org>
> Cc: 31271@debbugs.gnu.org
> 
> Sorry for the delay, I am submerged by work...

Happens to all of us.

> I just tried it and it seems to work, thanks.
> 
> I deleted an email,  I then output it to an mbox file which I was not
> visiting.  Whan I opend it, the mail was there, and was not deleted.
> Its flags are
> 
>  X-RMAIL-ATTRIBUTES: -----S--
> 
> But I don't know what it means.

That attribute means the message was forwarded.  See rmail-attr-array
and rmail-forwarded-attr-index.

What about the question I asked:

> What about invoking 'o' with a prefix argument -- should it stop
> ignoring deleted messages when it looks for the N-1 additional
> messages to output to a file, when this option is set non-nil?

The code I posted still ignores deleted messages, except for the
message that is current when the command is invoked.  Is that
reasonable?

Thanks.