if (areg->last_in_arc && vec_len (features_in_order) > 0)
{
last_feature = features_in_order[vec_len (features_in_order) - 1];
if (areg->last_in_arc && vec_len (features_in_order) > 0)
{
last_feature = features_in_order[vec_len (features_in_order) - 1];