FIX for Uncaught ReferenceError: wcff_fields_cloning is not defined

On Woocommerce checkout page the error Uncaught ReferenceError: wcff_fields_cloning is not defined.

If you make the following changes beginning on line 118 in wccpf-front-end.js the error resolves:

$(document).ready(function(){
		if( typeof(wcff_fields_cloning) != "undefined" && wcff_fields_cloning == "yes" ) {
			var wcff_cloner_obj = new wcffCloner();
			wcff_cloner_obj.initialize();
		}
		if( typeof(wcff_client_side_validation) != "undefined" && wcff_client_side_validation == "yes" ) {
			var wcff_validator_obj = new wcffValidator();
			wcff_validator_obj.initialize();
		}
	});

https://wordpress.org/plugins/wc-fields-factory/