Insert Font Awesome Icon App Connect gets class slightly wrong

Inserting a Font Awesome Icon using the App Connect has the class slightly wrong.

It inserts this:
<i class="fas fa-flag"></i>

When it should be this:
<i class="fa fa-flag"></i>

It’s just an additional ‘s’. Removing this makes it all work fine again.

The fas class is used in font awesome 5 and means a solid icon.

Please check what version do you have included on the page.

I’m using FA4 and the App Connect Element says Font Awesome 4 but it’s inserting the v5 class. If I remove the ‘s’ then the properties appear as they should.