A state doesn't get the transition reassigned when set to default in sub-state machine

Repro:
1. Create a new controller.
2. Create a state in sub-state machine - it becomes the default state and receives a default transition from the Entry node.
3. Create a new state in the sub-state machine and set it to default - the state turns orange, but the default transition stays with the first state
4. Delete the first state - the default state now gets the transition reassigned.

The default transition should be reassigned to the default state instantly