skip transitiionn if we are already in the desired state

transition.go

@@ -25,6 +25,9 @@ func NewTransition(trigger string, source State, dest State) Transitioner {
 
 func (r *Transition) Run(m Modeler) error {
 	currentState := m.InspectState()
+	if currentState == r.dest {
+		return nil
+	}
 	if currentState == r.source || r.source == "*" {
 		res := m.ChangeState(r.dest)
 		if res == currentState {