I talked with @minrk about the problem with config being saved, and
apparently the right answer is that wrapspawner was not clearing the
state properly.
.clear_state() is a hook that is called anytime a spawner is
stopped. This needs to clear everything - and it was missing
child_conf.
.clear_state()
is a hook that is called anytime a spawner is stopped. This needs to clear everything - and it was missing child_conf.