segfault if notmuch-show query has spurious .. (w/ v0.17)

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+       Tue, 21 Jan 2014 21:27:52 -0500\r
+From: Sanjoy Mahajan <sanjoy@olin.edu>\r
+To: <notmuch@notmuchmail.org>\r
+Subject: segfault if notmuch-show query has spurious .. (w/ v0.17)\r
+User-Agent: Notmuch/0.17 (http://notmuchmail.org) Emacs/24.3.1\r
+       (i486-pc-linux-gnu)\r
+Date: Tue, 21 Jan 2014 21:27:52 -0500\r
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+Probably because I kept using notmuch-emacs .elc code from 0.16 after\r
+notmuch got upgraded to 0.17 (I rarely restart emacs), my Emacs\r
+interface to notmuch started generating queries that caused Xapian\r
+exceptions and segfaults.  Here's one:\r
+\r
+  $ notmuch show '( FW: Student Employment Orie.. )'\r
+  A Xapian exception occurred performing query: Unknown range operation\r
+  Query string was: ( FW: Student Employment Orie.. )\r
+  Segmentation fault\r
+\r
+Restarting Emacs stopped those queries, so I don't think that's an\r
+issue.  However, notmuch itself probably should not segfault, even if\r
+Xapian gets confused by the .. in the query (making it look like a date\r
+range).\r
+\r
+This is on Debian/i386 with the notmuch 0.17-3 packages.\r
+-- \r
+-Sanjoy\r
+\r
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