CakePHP save/saveAll methods not displaying validation errors

Just thought I’d leave a quick note to myself about validation errors not showing up when I use read() after a save() or saveAll(). The key is to use a conditional for the read() or I believe using find() work as well.
Won’t show validation errors:

if (!empty($this->data)) {
  if ($this->User->saveAll($this->data, array('validate'=>'first'))) {
    $this->Session->setFlash('User saved');
  } else {
    $this->Session->setFlash('User not saved.');
  }
}
$this->data = $this->User->read(null, $id);

Will show validation errors:

if (!empty($this->data)) {
  if ($this->User->saveAll($this->data, array('validate'=>'first'))) {
    $this->Session->setFlash('User saved');
  } else {
    $this->Session->setFlash('User not saved.');
  }
} else {
    $this->data = $this->User->read(null, $id);
}