Can we unload a record that has been deleted?

adapters.application.js

let IS_DELETED = false;

export default class Adapter {
  queryRecord() {
    let isDeleted = IS_DELETED;
    IS_DELETED = true;
    return Promise.resolve({
      data: {
      type: 'api-managed',
      id: '1',
      attributes: {
        isDeleted
      }
    }
    });
  }
  
  get() {
    return null;
  }
  
  static create() {
    return new Adapter();
  }
}

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  hasUpdatedDeletedRecord: false,
  
  actions: {
    updateRecord() {
      let isDeleted = this.get('record.isDeleted');
      this.set('hasUpdatedDeletedRecord', isDeleted);
      
      this.get('store').queryRecord('api-managed', {});
    },
    unloadRecord() {
      let record = this.get('record.content');
      this.set('record', null);
      record.unloadRecord();
    }
  },
  
  init() {
    this._super();
    this.record = this.get('store').queryRecord('api-managed', {});
  }
});

models.api-managed.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  isDeleted: attr()
});

serializers.application.js

export default class Serializer {
  normalizeResponse(_, __, data) {
    return data;
  }
  
  static create() {
    return new Serializer();
  }
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
{{#if record}}
My record is: {{if record.isDeleted 'deleted' 'not deleted'}}
{{else}}
<b>Record Deleted</b>
{{/if}}

{{#unless record.isDeleted}}
<button {{action "updateRecord"}}>Fetch Remote Deletion</button>
{{else}}
{{#unless hasUpdatedDeletedRecord}}
  <button {{action "updateRecord"}}>Update Remote Deletion</button>
{{else}}
<button {{action "unloadRecord"}}>Unload Deleted Record</button>
{{/unless}}
{{/unless}}
<br>
{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "~2.13.0"
  }
}