Undestanding Ember Route hooks to redirect

I have this router setup

this.route('dashboard', function () {
    this.route('numbers');
    this.route('workspaces', function () {
        this.route('workspace', {path: '/:wid'});
});

dashboard.workspaces is a link in navigation bar. When you click it loads dashboard.workspaces.workspace and immediately redirects to first subnav. I do it like this:

export default Ember.Route.extend({

     model: function() {
         return this.modelFor('dashboard');
     },

     afterModel: function(model) {
         this.transitionTo('dashboard.workspaces.workspace', model.get('workspaces.firstObject.id'));
     }
}

It's all good except when I'm already on dashboard.workspaces.workspace route and click dashboard.workspaces then "afterModel" hook is not called and I end up on dashboard.workspaces, which is unwanted empty page. Are there other hook that would be always called? I have already tried "activate" and few others with no luck.

Would be also nice to be able to save last subnav transition and redirect to in when click on main nav.