Unreachable state/point of graph warnings for group transitions
Group transitions cause "unreachable" warnings on the source transition point, e.g.:
StateMachine {
State default_1
State reachable_1
TransitionPoint tp1_1
Transition init: initial -> default_1
Transition toReachable_1: my tp1_1 -> reachable_1 {
triggers { <in1: p> }
}
}