[PATCH v2] (notmuch-show "id:doesnotexist") should not throw an error.

diff --git a/b1/7abf9ceb605843b94cd7f3121dbad32a2079d6 b/b1/7abf9ceb605843b94cd7f3121dbad32a2079d6
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+From: David Edmondson <dme@dme.org>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH v2] (notmuch-show "id:doesnotexist") should not throw an\r
+ error.\r
+Date: Wed, 10 Feb 2016 14:01:17 +0000\r
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+(notmuch-show "id:doesnotexist") should not throw an error.\r
+\r
+This is a followup to id:"874nw0ltwz.fsf@praet.org" and\r
+id:"cuntx91fwaa.fsf@hotblack-desiato.hh.sledj.net".\r
+\r
+The originally proposed change (to have id: links call `notmuch-show'\r
+rather than `notmuch-search') was already made, but the difficulties\r
+with links that generated no results was not addressed. This patch\r
+aims to do that.\r
+\r
+v2:\r
+- Re-worked to `ding' rather than throwing an error.\r
+- Re-jig the relationship between `notmuch-show',\r
+  `notmuch-show-refresh-view' and `notmuch-show--build-buffer'.\r
+- Various buffer local variables no longer need to be `permanent-local'.\r
+\r
+\r
+David Edmondson (1):\r
+  emacs: Report a lack of matches when calling `notmuch-show'.\r
+\r
+ emacs/notmuch-show.el | 144 +++++++++++++++++++++++++++++---------------------\r
+ emacs/notmuch.el      |   6 ++-\r
+ 2 files changed, 89 insertions(+), 61 deletions(-)\r
+\r
+-- \r
+2.1.4\r
+\r