On Mon 2018-04-09 22:45:39 -0300, David Bremner wrote:
> This is useful for understanding the case where different
> message-files with the same message-id have distinct reference
> headers.
> ---
>  devel/draw-thread | 35 +++++++++++++++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100755 devel/draw-thread

fwiw, i think this tool is useful enough for debugging and visibility
that we should go ahead and include it in the notmuch source, under
devel/ -- we don't need to ship it publicly, but it'd be great to have
it easily available to all notmuch devs who might be dealing with this
kind of thing.

     --dkg