possible bug in nat_get_nids

As far as I can tell nat_get_nids will only ever look at the first term passed. Seems to be easily resolved with the following:

// Results have not been cached.
-    $tids = implode(', ', $tids);
$result = db_query("SELECT n.nid, t.name FROM {nat} n INNER JOIN {term_data} t USING (tid) WHERE n.tid IN (". db_placeholders($tids) .")", $tids);