malformed threads when using both --in-reply-to and --compose with git send-email

Hey,

I don't know if it's the wanted behavior but It seemed odd to me.

If I want to send a series of patches to an already started thread using --in-reply-to option and --compose this is what I would get :

git send-email --to git@vger.kernel.org --compose --in-reply-to <Message #2> --format-patch HEAD~2

+ Message #1
  + Message #2
    + [PATCH 0/2] My Serie of patches
    + [PATCH 1/2] My first patch
    + [PATCH 2/2] My second patch

I would have expected something more like this which is done when starting a new thread :

+ Message #1
  + Message #2
    + [PATCH 0/2] My Serie of patcher (In-Reply-To : <Message #2>)
      + [PATCH 1/2] My first patch (In-Reply-To : <My Serie of patches>)
      + [PATCH 2/2] My second patch (In-Reply-To : <My Serie of
patches>)

Regards.