link-to current-when question

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

router.js

import EmberRouter from '@ember/routing/router';
import config from './config/environment';

const Router = EmberRouter.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('dashboards', { path: '/dashboards' }, function() {
    this.route('go', { path: '/go/:name' });
    this.route('view', { path: '/:id' });
  });
});

export default Router;

routes.dashboards.go.js

import Ember from 'ember';

export default Ember.Route.extend({
  model({ name }) {
    const nameMap = {
      'one': '123'
    };
    this.replaceWith('dashboards.view', nameMap[name]);
  }
});

routes.dashboards.view.js

import Ember from 'ember';

export default Ember.Route.extend({
  model({ id }) {
    return {
      'id': id,
      'name': `Mr. ${id}`
    };
  } 
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.nav-link {
  text-decoration: none;
  color: black;
  cursor: pointer;
}

.nav-link.active {
  text-decoration: underline;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>

{{#link-to 'dashboards.view' '26' class='nav-link'}}Mr. 26{{/link-to}} |
{{#link-to 'dashboards.go' 'one' current-when='dashboards.go dashboards.view' class='nav-link'}}Dashboards{{/link-to}}
<br>
<br>
{{outlet}}
<br>
<br>
<h1>Instructions</h1>
<ol>
<li>Click the nav links for Dashboards or Mr. 26</li>
<li>Notice that when Mr. 26 is clicked, the active class is applied to the link (it will be underlined)</li>
<li>When Dashboards is clicked, the `.active` class is not applied even though `current-when='dashboards.view'` is specified.</li>
<li>Notice that the `link-to` component used for the Dashboards button uses a route -- dashboards/go -- which redirects using "replaceWith" to  dashboards/view route!</li>
</ol>

<p>

</p>

<p>
Why doesn't the "Dashboards" link get the `.active` class applied even thought it uses this code:
</p>

<p>
<code><pre>
//#link-to// 'dashboards.go' 'one' 
   current-when='dashboards.go dashboards.view' class='nav-link'// Dashboards //link-to//
</pre>
</code>
</p>
<p>Is it specific to a particular model?</p>

templates.dashboards.view.hbs

My name is: {{model.name}}
<br>
<br>
My id is: {{model.id}}

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}