Hi,
Well, actually this might be possible via a minor custom code snippet. There is an API function to reset the filters, so ideally I would trigger that when the search input gets focused.
Try adding this code to the functions.php file in your theme/child theme directory – make sure to have a full server back-up first for safety. For more details you can check the safe coding guidelines.
add_action('wp_footer', 'asp_footer_custom_script', 999999);
function asp_footer_custom_script() {
?>
<script>
document.querySelectorAll('input.orig').forEach(function(el){
el.addEventListener('focus', function(){
ASP.api(el.closest('.asp_m').dataset['id'], 'resetSearchFilters');
});
});
</script>
<?php
}