Query with ids hash not working

[francesco-loreti]

Version: 1.15.0
I have two model: User and Role
In ability I can manage all User and I want manage Role

Not work if I write:
can :manage, User
can :manage, Role, user: { id: User.ids } or { id: User.pluck(:id) }

Working only if I write:
can :manage, User
users = User.all
users.each do |user|
can :manage, Role, user_id: user.id
end

This is a simple example. For more nested Models it's very difficult with many cicles inside.
Please verify and tell me the solution

[coorasse]

Please refer to Stackoverflow for questions. Thanks.