* Ensure that include_role properly fires handlers
include_role needs to ensure that any handlers included
with the role are added to the _notified_handler and
_listening_handler lists of the TaskQueueManager, otherwise
it fails when trying to run the handler.
Additionally, the handler needs to be added to the
PlayIterator's `_uuid_cache` or it fails after running
the handler
Add more uuid debug statements - this code was hard
to debug with existing debug statements, so add more
uuid information at little additional output cost.
Fixes#18411
* Add tests for include_role handlers
Tests for #18411
ef8c9798d3