Let me see if I understand what that means:
* I maintain my own Git clone
* Patches to git-multimail would go to the Git mailing list like patches
to other patches to the Git project, but I would be the one to git-am
them, monitor discussion, help with review, etc. I would presumably
apply the patches near your master (or near maint when necessary).
* When I think a batch of patches is ready, I merge them to my master
and publish my master somewhere. (Or is it better I publish the feature
branch and leave it to you to merge directly to your master?) Then I
send a merge request to you and the Git mailing list with the URL and
SHA-1 of the branch that I would like you to merge.
That seems very workable.
What is your preference regarding the history to date?
Michael