Re: Breaking a really long thread

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+From: David Mazieres <dm-list-email-notmuch@scs.stanford.edu>\r
+To: David Bremner <david@tethera.net>, notmuch@notmuchmail.org\r
+Subject: Re: Breaking a really long thread\r
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+References: <1459015043-8460-1-git-send-email-david@tethera.net>\r
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+Date: Sat, 02 Apr 2016 06:56:12 -0700\r
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+David Bremner <david@tethera.net> writes:\r
+\r
+> David Mazieres <dm-list-email-notmuch@scs.stanford.edu> writes:\r
+>\r
+>> Is there any way to break an existing thread (so as to start over with a\r
+>> smaller thread), or otherwise to tweak the threading rules so that a\r
+>> particular References header gets ignored.\r
+>\r
+> Currently there is no way to do this, as threads are "stateless"\r
+> i.e. created on the fly by _notmuch_create_thread based only on\r
+> immutable mail data.\r
+\r
+Thanks.\r
+\r
+>> It's annoyingly slow to open\r
+>> a thread with 10,000 messages just to read one SMS.  I'm almost tempted\r
+>> to mangle the messages on delivery and remove the References header\r
+>> before notmuch sees them, but it would be nice to have a cleaner\r
+>> solution, as there are other situations in which one might want to\r
+>> "reset" a really long thread.\r
+>\r
+> Like this thread ;).\r
+\r
+Oops, sorry for the irrelevant thread inclusion.  I guess emacs adds the\r
+References header after a message is sent is sent?  In my setup, the\r
+easiest way to post to a mailing list is to reply to an existing message\r
+(since I subscribe to each list under a different email address).  I\r
+tried to start a new thread by deleting the In-Reply-To and header which\r
+was all I saw, but I guess the References header got inserted later...\r
+\r
+David\r