TransitionToState is missing in V3

[dcasbonne]

Feature Request

I'm writing a simple rule that update Parent status. Let's say I'm on a task update and it has been set to Active.
At this moment, its parent (a User Story / Requirement) should be set to Active.
However we have some transition rules : Proposed / Approved / Active / Resolved and we have to pass by each state.
If my parent is in Approved state it's easy to set it to Active. But if it's in Proposed state I couldn't set to Active because this state is not in the list.

Describe the solution you would like
In V2 you had a TransitionToState(...) method that allow us to change state without considering a "path" to follow and by adding a comment too. I'm missing this method !

Describe alternatives you have considered
I've found in issue #208 that I can call SaveChanges on the store but it's not easy to use (need several parameters that I can't access in my rule)
EDIT : this solution doesn't work, it fails with this message :
Test Operation for path /rev failed, value 14 was not equal to test value 13."}​}

Additional context
Add any other context or screenshots about the feature request here.