UPDATE ***
I found a solution by adding this JS in the main search page. it’s not a pretty one but it’s working pending a better solution.
<script>
(function($) {
$(document).on('facetwp-refresh', function() {
if (FWP.loaded) { // after the initial pageload
FWP.parseFacets(); // load the values
FWP.setHash(); // set the new URL
location.reload();
return false;
}
});
})(jQuery);
</script>