Sort result list for local data

[jonaaix]

I'm using a local list for suggestions. However it seems to be not possible to have a custom sorting for this list.

formElement.ref.autocomplete({
	lookup: data,
	autoSelectFirst: true,
	minChars: 0,
	appendTo: formElement.ref.parent(),
	orientation: 'bottom',
	lookupFilter: () => true,
});

What I want to achieve is to display the mached results on top, and UNION the unmatched suggestions below. I tried using transformResult and onSearchComplete, but none seems to have an effect on the suggestions list and transformResult not even triggered. As far as I understood, this kind of function should usually work:

transformResult: (response, originalQuery) => {
   const matches = [];
   const unMatches = [];
   for (const element of response) {
      if (element.toLowerCase().match(originalQuery.toLowerCase())) {
         matches.push(element)
      } else {
         unMatches.push(element);
      }
   }
   
   return matches.concat(unMatches);
}