What's wrong with this find condition
===

The following works, it gives me all data where deleted is null:

    $conditions = array('OR' => array(
			
		'Task.deleted' => null,
			
			
		)
			
	);
		
		
	$this->set('tasks', $this->Task->find('all', array('recursive' => 2, 'conditions' => $conditions)));
		
	
Similiar the following gives me all data where deleted is 0

    $conditions = array('OR' => array(
			
	 'Task.deleted' => 0,
			
			
	)
			
    ); //...

But If i combine it like the following, it gives me the data where deleted is null, but not where deleted is 0.

    $conditions = array('OR' => array(
			
			'Task.deleted' => 0,
			'Task.deleted' => null
			
	        )
			
	);