DEADLOCK when running ALTER TABLE truncate partition + SELECT when using galera

When running concurrent SELECT and ALTER TABLE .. truncate partition with galera enabled one randomly gets a deadlock error. This does not happen when on runs the same test without galera.
To verify this, install the attached test case in galera/t and run it in a loop.
It will eventually die with

mysqltest: At line 401: query 'reap' failed: ER_LOCK_DEADLOCK (1213): Deadlock found
when trying to get lock; try restarting transaction.