message: Set history flag on peeked context
  Native navigation happens first means it's a history navigation - swipe back or double tap tab (equivalent to browser history)
diff: @@ -96,6 +96,7 @@ class Scene extends React.Component<SceneProps, SceneState> {
  stateContext.data = data;
  stateContext.url = url;
  stateContext.title = title;
  + stateContext.history = true;
  stateContext.crumbs = crumbs.slice(0, crumb);
  stateContext.nextCrumb = crumbs[crumb];
  var {state, data, url} = nextCrumb;
  