<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body>I can trigger the bug if I discard text/plain though. Did you try that? <div><br></div><div style="font-size:100%;color:#000000"><!-- originalMessage --><div>-------- Original message --------</div><div>From: David Bremner <david@tethera.net> </div><div>Date: 11/11/2016 11:40 (GMT+00:00) </div><div>To: Matthew Lear <matt@bubblegen.co.uk>, Matt Armstrong <marmstrong@google.com> </div><div>Cc: notmuch@notmuchmail.org </div><div>Subject: Re: some issues with emacs 25 </div><div><br></div></div>Matthew Lear <matt@bubblegen.co.uk> writes:<br><br>> On 09/11/16 23:55, David Bremner wrote:<br>>> I can't find an html only public-message so far to give a full<br>>> backtrace.<br>> If it helps, here is some text in *bold *with some changes in red that<br>> you can test with :-D<br><br>FWIW, this doesn't trigger the bug with default settings + (setq<br>notmuch-mua-compose-in 'new-window) because it has a text part.<br><br></body></html>