Ver 6.9.0 breaks 'Filter where the WooCo checkbox will go' feature

[njwgh]

I use the option to filter where the checkbox will go in the woocommerce checkout, using this code:

add_filter( 'yikes-mailchimp-wooco-integration-checkbox-checkout-fields', '__return_false' );

add_filter( 'yikes_mailchimp_wooco_integration_placement_filter', 'yikes_mailchimp_change_wooco_checkbox_placement', 10, 1 );
function yikes_mailchimp_change_wooco_checkbox_placement( $placement ) {
    return 'woocommerce_before_order_notes'; 
}

This works fine in version 6.8.10, but when I update to version 6.9.0, the actual checkbox no longer shows.
The text label is there but no checkbox.

I assume this is because the checkbox is being output with html and that has been sanitized by the #917 pull request

This code gets lost from the output html:

<input type="checkbox" name="yikes_mailchimp_checkbox_woocommerce_checkout_form" value="1">