[FIX] mail.thread: decode_header should ignore empty/None header values
bzr revid: odo@openerp.com-20130107111351-72z36e0pjjikpd0e
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@ -39,7 +39,7 @@ _logger = logging.getLogger(__name__)
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def decode_header(message, header, separator=' '):
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return separator.join(map(decode, message.get_all(header, [])))
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return separator.join(map(decode, filter(None, message.get_all(header, []))))
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class mail_thread(osv.AbstractModel):
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