'notmuch search thread:<>' lists multiple threads

[David Bremner]

"Naveen N. Rao" <naveen.n.rao at linux.vnet.ibm.com> writes:

> In my case, I seem to be having the In-Reply-To headers. I end up with 
> two files per message: one from my inbox and one from the gmane archive 
> that I pull in. All the messages from the gmane archive seem to have a 
> re-written 'In-Reply-To' header, but 'Message-Id' and 'References' are 
> the same.

That sounds like essentially the same issue, due to the fact that
notmuch prefers In-Reply-To when choosing a parent for a message.

Currently the database is correct (or at least one not-crazy definition
of correct): all of the reference and in-reply-to terms are attached to
the message document in the database. On the other hand, the in memory
data structures currently assume that In-reply-to is a unique value
(with ties broken at indexing time).

It might be that the solution is to read a list of in-reply-to values
and use all of them in threading. At a quick glance, that looks doable;
I'm just not sure about unintended consequences.

d