Doesn't Work With Woocommerce

[palbera]

Hi there,
unfortunately this doesn't work with woocommerce.
I tried to add this piece of code on line 143 of this plugin as suggested on your blog:

foreach($terms as $k => $v) {
if($v->parent == $pref_id) {
$perf_term = array($pref_id => $terms[$k]);
unset($terms[$pref_id]);
$terms = $perf_term + $terms;
break;
}
}

These lines make your plugin working on woocommerce but it doubles all categories.

Any suggestion?

Thanks in advance for your response.