Problem with consecutive calls to app.navigate("#:back")

Hello,
In our application, in case the user clicked a certain button, we need to go back two screens. We do this with the following code:

                    app.navigate("#:back");
                    setTimeout(function(){
                        app.navigate("#:back");//to budget edit
                    }, 0);
                }
Testing this code works well on Chrome. It also works well in our tests on iPhone. However in our tests on Android (Nexus 7) it fails and only the first app.navigate("#:back") is executed. Meaning our app fails to bring the user to the correct view. Do you have any idea what might be the cause and how can we handle it?

Thanks,

Ron.