loading templates are ignored when a route is entered via its alias

[arnebit]

When a route's model takes some time to load and there is a ...-loading.hbs for the route, it is not shown when entering the aliased route - the previous page just stays there until loading is completed and the actual route template is rendered.

If this is intentional or unavoidable, it would be helpful to learn that directly from the documentation.

Example:

// tests/dummy/app/routes/one.js
import Route from '@ember/routing/route';

export default Route.extend({
  model() { return new Promise(resolve => setTimeout(resolve, 3000)) }
})

{{!-- tests/dummy/app/templates/one-loading.hbs --}}
<em> loading one! </em>

Then visit /one, visit /two (or any other route), then visit /alias-one.