Reset stackNavigation when changing TabNavigation

Question

I would like to know how reset my stack navigation when a changing my tabNavigation. I try to use type="reset" but nothing happen

try :

export default class App extends Component {
    render() {
        return (
            <Router>
              <Scene key="root">
                <Scene
                  key="tabbar"
                  tabs={true}
                  type={ActionConst.RESET}
                  tabBarStyle={{ backgroundColor: '#FFFFFF' }}
                >
                  <Scene key="osu" title="OSU" icon={TabIcon} type={ActionConst.RESET}>
                    <Scene 
                      key="scarlet"
                      component={ScarletScreen}
                      title="Scarlet"
                    />
                    <Scene
                      key="gray"
                      component={GrayScreen}
                      title="Gray"
                    />
                  </Scene>
                  <Scene key="vu" title="VU" icon={TabIcon}>
                    <Scene 
                      key="blue"
                      component={BlueScreen}
                      title="Blue"
                    />
                    <Scene
                      key="black"
                      component={BlackScreen}
                      title="Black"
                    />
                  </Scene>
                </Scene>
              </Scene>
            </Router>
          );
    }
}

I can pass to gray from scarlet and when i change top i want reset stack to scarlet.

Someone know ??