Binding the actionReceiver of a component breaks concatenatedProperties

[emoryy]

Have a component like this: my-component.js

import Ember from 'ember';
import InboundActions from 'ember-component-inbound-actions/inbound-actions';

export default Ember.Component.extend(InboundActions, {
  concatenatedProperties: ['x'],
  x: ['A'],
  classNames: ['A'],
});

my-component.hbs

<h2>{{caseDescription}}</h2>
x: {{x}}
<br>
classNames: {{classNames}}

And use it like this: application.hbs

{{my-component
  caseDescription="without binding the actionReceiver"
  x="B"
  classNames="B"
}}

{{my-component
  caseDescription="with binding the actionReceiver"
  x="B"
  classNames="B"
  actionReceiver=actionReceiver
}}

Then the rendered result will be this:

without binding the actionReceiver

x: A,B 
classNames: A,B

with binding the actionReceiver

x: B 
classNames: B

That is, binding the the actionReceiver to the outer context causes the concatenatedProperties to not work.

Twiddle demonstrating the error: https://ember-twiddle.com/c7842938c40eb9118db2a45e8f4f1292