Comment 18 for bug 1308016

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Alexey Kopytov (akopytov) wrote : Re: Duplicate UK values can be replicated under concurrent workload with READ-COMMITTED

Setting http://bugs.mysql.com/bug.php?id=76927 as the upstream bug, because the currently linked bug #69979 was discussing phantom duplicate values in REPEATABLE READ and was closed as Not a Bug.

Bug #76927 is about real duplicate values with the READ COMMITTED isolation level and/or innodb_unsafe_locks_for_binlog=1.