JS Error: walls_to_load is not defined

Same issue for me.
Is it possible to know how a fix will be in production?
Thanks.

For your information in order to not have this error message, here what I am fixed in js/gc_social_wall.js:

jQuery(document).ready(function(){
if(typeof walls_to_load != “undefined”) {
var agragator = new Agregator(walls_to_load);
}
});