// Hierarchical, and it matches an existing term, Do not allow same "name" in the same level.
$siblings = get_terms($taxonomy, array('fields' => 'names', 'get' => 'all', 'parent' => (int)$parent) );
if ( in_array($name, $siblings) ) {
// Hierarchical, and it matches an existing term, Do not allow same "name" in the same level.
$siblings = get_terms($taxonomy, array('fields' => 'names', 'get' => 'all', 'parent' => (int)$parent) );
if ( in_array($name, $siblings) ) {