Error when rendering icon after using the "Translate to <spoken language>" feature in Google Chrome

[samcic]

Describe the bug
On a new bare-bones Ember app, if the user uses the Chrome "Translate to " option on the page and then does something that renders an FA icon, a console error is shown and the icon isn't rendered.

Reproducible test case

1. ember new translate-test
2. Modify package.json and add "@fortawesome/ember-fontawesome": "^0.2.1" and "@fortawesome/free-brands-svg-icons" as devDependencies.
3. Modify environment.js to include fontawesome: {icons: {'free-brands-svg-icons': ['google']}} in the ENV hash.
4. Modify application.hbs to include the following:

<button {{on "click" (fn (mut this.showIcon) true)}}>Show</button>
{{#if this.showIcon}}
  {{fa-icon "google" prefix="fab"}}
{{/if}}

5. Start the dev server, load the page in Chrome, right click on the page and select "Translate to English" (or any other language)
6. Click the "Show" button on the page and observe the error in the console

Here's a video of the steps in the browser: https://recordit.co/tDCGmmOQJn

Expected behavior
The expected behavior is that the icon shows without error. If you load the page without translating, it works fine. It's only an issue if you translate the page first.

Desktop (please complete the following information):

• Windows 10, Chrome, 85.0.4183.83 Browser

Additional context
Using the latest Ember 3.20 build.