Crashes after upgrade from 5.5.52 to 10.2.12

In two different environments, we have experienced periodic crashes after upgrading from 5.5.52 to 10.2.12. The first wave of investigation was covered in https://jira.mariadb.org/browse/MDEV-14915 but was written off as an upgrade procedure problem, since the crashes eventually stopped.

But now in a new environment, we have experienced three identical crashes within the first 24 hours of the upgrade, all with the same blame as before:

0x7fd2900b0700 InnoDB: Assertion failure in file /home/buildbot/buildbot/build/storage/innobase/que/que0que.cc line 567

We need a way to prevent these crashes before we proceed with upgrading the other ten servers in our environment.

Attached is the error log detailing the upgrade at 2018-03-05 16:20, and the crashes at 180306 8:12:14 , 2018-03-06 09:59:37, and 180306 10:39:04