externalTransition和transit().fromAny连用，出现问题

```
stateMachineBuilder.externalTransition().from(A)
                        .to(B)
                        .on(A2B)
                        .perform(action1);


 stateMachineBuilder.transit().fromAny()
                        .to(A)
                        .on(_2A)
                        .perform(action2);

```

执行时
stateMachineBuilder.newStateMachine(B).test(_2A)，没有变化，并且canAccept也是false