[site-reviews] fix child categories

function glsr_fix_category_children(array $values) {
    if (empty($values['assigned_terms']) || !is_array($values['assigned_terms'])) {
        return $values;
    }
    $termIds = [];
    foreach ($values['assigned_terms'] as $termId) {
        $termIds[] = $termId;
        $childTermIds = get_term_children($termId, 'site-review-category');
        if (!is_wp_error($childTermIds)) {
            $termIds = array_merge($termIds, $childTermIds);
        }
    }
    $termIds = array_map('intval', $termIds);
    $termIds = array_values(array_unique($termIds));
    $values['assigned_terms'] = $termIds;
    return $values;
}
add_filter('site-reviews/defaults/create-review', 'glsr_fix_category_children');
add_filter('site-reviews/defaults/reviews', 'glsr_fix_category_children');