commit 1198267c331b045b9cad26be72b1a5b4f8930a79
Author: Thirunarayanan Balathandayuthapani <thirunarayanan.balathandayuth@oracle.com>
Date:   Fri Aug 26 11:00:44 2016 +0530

    Bug #20989615   INNODB AUTO_INCREMENT PRODUCES SAME VALUE TWICE

The code fix is already present.