From: Philipp Takacs <philipp@bureaucracy.de>
Date: Sat, 5 Jan 2019 13:30:57 +0000 (+0100)
Subject: fail in pick if a massage of -thread has no thread-id
X-Git-Tag: mmh-0.4~5
X-Git-Url: http://git.marmaro.de/?p=mmh;a=commitdiff_plain;h=ec2171174c019bdc83002cc29d06357e30b4b90d;hp=ec2171174c019bdc83002cc29d06357e30b4b90d

fail in pick if a massage of -thread has no thread-id

If pick -thread is used with a message without a message-id
or a references header field pick now fails. This prevents
falling back to all messages as default.
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