WooCommerce product import by WebToffee compatibility with - File Renaming on Upload plugin

functions.php

<?php // Do not copy this line

add_filter('sanitize_file_name', 'sanitize_file_name_wt', 99999, 2);

function sanitize_file_name_wt($filename, $filename_raw) {

    if (strpos($filename, 'temp_') !== false) {
           return $filename_raw;
    }
    return $filename;
}