Prevent multiple form submission on Review pane

We already include the drupal form library.

CheckoutFlowBase::buildForm() has the following code:
$form['#attached']['library'][] = 'commerce_checkout/form';

And the checkout form library has core/drupal.form as a dependency.

form:
  version: VERSION
  css:
    theme:
      css/commerce_checkout.form.css: {}
  dependencies:
    - core/drupal.form

Ok strange because it didn't work.
But it did after I added the library.

I can see that the complete form has the library attached but the pane form does not.

Before I added the line and have xdebug on multiple instances spin up.

After I added the line only 1 spin up.

So yeah believe it or not this should be added also to pane forms.