String search > Post ID ?

Hi, I’m part of the way there.

In process.php line 135 I replaced:

$query->query_vars['s'] = esc_html($keyword);

with:

$query->query_vars['s'] = esc_html($keyword);
if(absint($query->query_vars['s'])) {
    // Set the post id value
    $query->set('p', $query->query_vars['s']);
    // Reset the search value
    $query->set('s', '');
}

This works. I have a couple of UI issues though:

1. Let’s say I do a tax / custom field search. The search results page loads and the selected options in the QSF widget remain selected. Now I do a search by ID (string) using the text field. When the search results load, the options from the previous (taxonomy/custom field) search persist. Is there an easy mod I can make to have the QSF widget reset all tax/custom field selections to null/empty when a results set is returned from a search that is made by string?

2. Let’s say I do a search by ID. How can I get the text in the input field to remain / persist when the search results page loads?

Any clues or advice gratefully received!