Description:
------------
Test following script please. 
It enters __get twice on unset property (class Ex1) but only once on Ex2. 

It doesn't really make sense and can't find any word in document so I assume it's 
a bug. 

Test script:
---------------
class Ex1{
  private $var;

  function __construct(){
        unset($this->var);
  }

  function __get($elmname){
        echo "call __get\n";
        return $this->$elmname;
  }

}

class Ex2{

        function __construct(){
        }

        function __get($elmname){
                echo "call __get\n";
                return $this->$elmname;
        }

}

$ex1=new Ex1();
echo $ex1->var;

$ex2=new Ex2();
echo $ex2->var;


Expected result:
----------------
call __get
PHP Notice:  Undefined property: Ex1::$var in /web/sites/test/test1/t5.php on line 
12
call __get
PHP Notice:  Undefined property: Ex2::$var in /web/sites/test/test1/t5.php on line 
24


Actual result:
--------------
call __get
call __get
PHP Notice:  Undefined property: Ex1::$var in /web/sites/test/test1/t5.php on line 
12
call __get
PHP Notice:  Undefined property: Ex2::$var in /web/sites/test/test1/t5.php on line 
24