Inconsistent sorted list

controllers.application\.js

import { inject as service } from '@ember/service';
import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  @service
  store;

	get sortedTodos() {
    return this.model.sortBy('isDone');
  }
}

models.todo\.js

import Model from 'ember-data/model';
import attr from 'ember-data/attr';

export default class TodoModel extends Model {
  @attr
  text;

  @attr('boolean', { defaultValue: false })
  isDone;
}

routes.application\.js

import { inject as service } from '@ember/service';
import Route from '@ember/routing/route';

export default class ApplicationRoute extends Route {
  @service
  store;

  model() {
    this.store.push({
      data: [
        { type: 'todo', id: '1', attributes: { text: 'Todo 1', isDone: false } },
        { type: 'todo', id: '2', attributes: { text: 'Todo 2', isDone: false } },
        { type: 'todo', id: '3', attributes: { text: 'Todo 3', isDone: false } },
      ],
    });

    return this.store.peekAll('todo')
  }
}

styles.app\.css

body {
  margin: 1em 2em;
  font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;
}

ul {
  list-style-type: none;
}

li {
  margin-bottom: 0.5em;
}

input:focus {
  outline: 3px solid hsla(210, 100%, 70%, 0.5);
}

templates.application\.hbs

<h1>
	Inconsistent sorted list behavior
</h1>

<ul>
	{{#each this.sortedTodos key="@identity" as |todo|}}
    <li>
      <label>
        <Input @type="checkbox" @checked={{todo.isDone}} />
        {{todo.text}}
      </label>
    </li>
  {{/each}}
</ul>
<br>
<p>
  Check and uncheck <strong>Todo 2</strong>’s
  checkbox and observe how the input outline 
  <em>persists while unchecking</em> but
  <em>does not when checking</em>.
</p>

twiddle\.json

{
  "version": "0.17.1",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0",
    "ember-data": "3.18.0"
  }
}