On Fri, May 18, 2018 at 12:12:32AM +0200, Michael Buch wrote: > Nvm, that's the correct patch. Got confused by it auto-replying to the > thread...
It didn't at least as far as Mutt is concerned. Are you using the Gmail web UI? I think the Gmail web UI will treat emails with the same title as part of the same thread even if the In-Reply-To or References fields don't mention the Message-ID of an earlier email. Eric