[Users] Thread using subject doesn't seem to work

[Francis Moreau]

On Tue, Sep 29, 2015 at 8:59 AM, Paul <claws at thewildbeast.co.uk> wrote:
> On Tue, 29 Sep 2015 08:52:34 +0200
> Francis Moreau <francis.moro at gmail.com> wrote:
>
>> I have a folder which contains bug reports sent by bugzilla.
>> Unfortunately comments from the same report aren't showed as thread.
>
> Bugzilla messsages use MessageID and References headers, so they
> don't need this option to thread properly.
>

That's true.

However bugzilla seems to link all comments/emails to the very first
comment of the report. And in my case I do not necessarly received the
very first comment.

That's the reason I'm trying to use "Thread using subject ..." option
which seems to not have any effects.

Thanks.
-- 
Francis