Major Description
Current UserService#list / UserService#search and RoleService#list / RoleService#search will barely return all details available for each user / role: attributes (plain, derived, virtual), resources, memberships (user only).
In production environments, though, this might cause unnecessary information transfer and delays (especially for virtual attributes which might trigger remote connections).
It is useful to provide some kind of mechanism (ideally an optional parameter, defaulting to true) to skip additional details return, for usage with admin console.