Thanks for pulling this together. I sent two patches to the list on March 16. They were a bug fix to allow notmuch to correctly handle some poorly formatted email. Nobody ever replied, but I'd like to see the bug fixed nonetheless, as it results in unreadable mail. Since I've actually seen such mail in the wild, I'd like to see Notmuch handle it.
Those messages were: Message-ID: <87ipvifrlv.fsf at softwarefreedom.org> Message-ID: <87fwqmfr2x.fsf at softwarefreedom.org> Thanks, James