Flow w/Flow-Navigation and replacing the stack without retaining presenters

router.java

// get size of the history
int historySize = Flow.get(context).getHistory().size();

// pop all old history off the stack
History.Builder builder = history.buildUpon();
while (historySize > 1) {
    builder.pop();
    Flow.get(context).setHistory(builder.build(), Flow.Direction.REPLACE);
    historySize--;
}

// set the real destination
Flow.get(context).setHistory(History.single(path), Flow.Direction.REPLACE);