There were previously bugs with do-add-role token - especially related
to role-assignment-type other than USER_TO_ROLE

I believe these have been at least partly addressed.

One of the role-assignment-type values is ROLE_TO_ROLE that can
aparrently define a role to role relationship via this same token.

Previously, one had to use a SOAP call to do this via
requestRolesAssignmentRequest with assignment type ROLE_TO_ROLE.

I've tested this using the add role token and specifying ROLE_TO_ROLE.
It appeared to work.

Question for Steve - is it officially supported to use do-add-role to
define this type of role relationship?

Anyone else using this? If so, any gotchas? I'd prefer to not make yet
another PRD containing a single integration activity just to achieve
this goal.