Re: Newsgroups mailing-list gateway broken thread

[Nuno Silva]

On 2018-10-19, Bob Proulx wrote:

> Nuno Silva wrote:
>> But why is the gateway rewriting Message-IDs?
>
> I think that would be a bug.  But it may be a bug only in one of the
> newgroup relays.  The list for the replied to message:
>
>   Path: 
> usenet.stanford.edu!goblin2!goblin1!goblin.stu.neva.ru!news.albasani.net!.POSTED!not-for-mail
>
>> Your post, seen from USENET, has:
>>
>>     Message-ID: <mailman.2440.1539944256.1284.help-gnu-emacs@gnu.org>
>>
>> And on Gmane:
>>
>>     Message-ID: <86zhvab5r3.fsf@zoho.com>
>
> I think that is a good clue.  But it may include a race condition.
> The message id that includes "mailman" seems like something that could
> be inserted by the mail to newsgroup direction of the gateway.  And
> why doesn't it include an actual hostname there?  It isn't required.
> It is only required that it be unique and any unique string may be
> used there.  So that may not be wrong as such.  And it might be the
> creation of a news reader creating that message id.  But it feels like
> something that needs to be understood in order to continue to make
> sense of things.
>
>> (This reply is being sent through USENET, but I tried to set
>> In-Reply-To myself. If that works, it shouldn't break threading.)
>
> I think it worked.
>
> What did you try setting it to?  It came to the mailing list with:
>
>   In-Reply-To: <86zhvab5r3.fsf@zoho.com>
>   References: <87lg6w43k8.fsf@portable.galex-713.eu> <861s8nefj5.fsf@zoho.com>
>           <874ldjtcow.fsf@portable.galex-713.eu>
>           <20181018121955500722783@bob.proulx.com>
>           <mailman.2440.1539944256.1284.help-gnu-emacs@gnu.org>

That (above) is exactly what was in the post I sent. I manually added
"In-Reply-To: <86zhvab5r3.fsf@zoho.com>". This should be the Gmane
Message-ID of the post which shows up here (USENET) as
<mailman.2440.1539944256.1284.help-gnu-emacs@gnu.org>.

> It apeared that the message you replied to was:
>
>   Message-ID: <86zhvab5r3.fsf@zoho.com>
>   References: <87lg6w43k8.fsf@portable.galex-713.eu> <861s8nefj5.fsf@zoho.com>
>           <874ldjtcow.fsf@portable.galex-713.eu>
>           <20181018121955500722783@bob.proulx.com>
>
> Seems that the message id should have also been pushed into the
> References list too but was not.  But I know you were doing that
> manually.  If it were done by software then the message id should be
> pushed into References and set as the In-Reply-To.  But it is also
> interesting that the References list changed beyond that too.

It was pushed, but it was the rewritten Message-ID. This is the problem.
For some reason something is changing the Message-IDs. But instead of
changing *all* of them - Message-ID, References and In-Reply-To - (and
in both directions), it appears to be changing the Message-ID only?

-- 
Nuno Silva