Appended mix items respect the currently set sorting option in Multifilter Plugin

[Reza-Eskandari]

Hi!👋 I'm appending some fetched items from an ajax call to the mix-container but if the user had already selected a sorting option (let's say "price:asc") the appended items don't sort based on that selected sorting option and get appended in the container based on their default sorting option. Somehow the appended items respect the currently set filter options and get shown if they match the selected filter options. How do I resort the items after appending the items in the mix-container? I'm using the multifilter extension but not using the dataset api. is there a way to achieve this without incorporating the dataset api?

I've tried this but this doesn't seem to be working:

mixer.append(new_product_cards,false)
 .then(function(state) {
    mixer.sort(mixer.getState().activeSort.sortString, false)
 });