Bug: problem decoding some non-ascii characters in subjects

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+From: Albin Stjerna <albin.stjerna@gmail.com>\r
+To: notmuch@notmuchmail.org <notmuch@notmuchmail.org>\r
+Cc: \r
+Subject: Bug: problem decoding some non-ascii characters in subjects\r
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+Date: Fri, 08 Feb 2013 11:22:35 +0100\r
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+\r
+Hi,\r
+\r
+I've been noticing that notmuch has some problems decoding certain strangel=\r
+y-encoded non-ascii characters in certain emails. For example, today I got =\r
+this: [BIBLIST] Digitaliseringensprojektens skadliga f=3D?ISO-8859-1?Q?=3DF=\r
+6rk=3DE4rlek_f=3DF6r_?=3D PDF-formatet (should be rendered: =C2=BBDigitalis=\r
+eringsprojektens skadliga f=C3=B6rk=C3=A4rlek f=C3=B6r PDF-formatet=C2=AB).\r
+\r
+Apparently, some metadata is passed on to help the MUA decode the string, b=\r
+ut notmuch doesn't seem to handle it. Entire emails can of course be suppli=\r
+ed as needed.\r