Bug when destination stop is an interchange stop

If a destination stop is an interchange stop, sometimes, the result will ask you switch bus lines which shouldn't happen since you have reached the destination.

<img width="399" alt="screen_shot_2017-03-01_at_11 34 51_am" src="https://cloud.githubusercontent.com/assets/264626/25130606/57f8ed9e-2475-11e7-803e-c2a47e9f15fb.png">
