Query Param issue reproduction

controllers.application\.js

import Controller from '@ember/controller';
import { action } from '@ember/object';
import { tracked } from '@glimmer/tracking';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
  queryParams = ['search', 'statuses'];
  search = '';
  statuses = [];
	@action
  toggleStatus(status) {
    if (this.statuses.includes(status)) {
      this.statuses.removeObject(status);
    } else {
      this.statuses.pushObject(status);
    }
    console.log('statuses: ', this.statuses);
  }
}

routes.application\.js

import Route from '@ember/routing/route';

export default class ApplicationRoute extends Route {
  queryParams = {
    statuses: {
      refreshModel: true
    },
    search: {
      refreshModel: true
    }
  };
  async model() {
    await new Promise((resolve) => setTimeout(resolve, 2000));
  }
	serializeQueryParam(value, urlKey, defaultValueType) {
    console.log(`serializeQuery params: "${value}"\ntype:${typeof value}\ndefaultValueType: ${defaultValueType}`);
    return super.serializeQueryParam(...arguments);
  }
  deserializeQueryParam(value, urlKey, defaultValueType) {
    console.log(`deserializeQuery params: "${value}"\ntype:${typeof value}\ndefaultValueType: ${defaultValueType}`);
    return super.deserializeQueryParam(...arguments);
  }
}

templates.application\.hbs

<h1>Query Parameter Breakage Repro</h1>
<p>Click any of the checkboxes and whilst the timeout is happening (2 seconds), enter something into the search text input.</p>
<p>Note in the browser console how the array has become a string</p>
<b>IF YOU TYPE TOO MANY KEYSTROKES IT WILL CRASH THE BROWSER!</b>
<br/>
<br/>
<label for='good'>Good</label>
<Input id='good' type="checkbox" @change={{fn this.toggleStatus 'good'}} @value={{this.good}} />
<label for='bad'>Bad</label>
<Input id='bad' type="checkbox" @change={{fn this.toggleStatus 'bad'}} @value={{this.bad}} />
<label for='other'>Undecided</label>
<Input id='other' type="checkbox" @change={{fn this.toggleStatus 'undecided'}} @value={{this.undecided}}/>

<Input @value={{this.search}} placeholder="Search stuff" />

<pre>
  Statuses:
  {{this.statuses}}
</pre>

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"
  }
}