progressBar with scale bug

[raytsang]

In Demo Scene - KitchenSinkManager:

    // Progress/Health bar
    var progressBar = UIProgressBar.create( "progressBar.png", 0, 0 );
    progressBar.positionFromBottomLeft( .05f, .02f );
    progressBar.resizeTextureOnChange = true;
    progressBar.localScale = new Vector3(1,1.5f,1);    <<just add this line
    progressBar.value = 0.4f;

the result is not expected...
I have try
progressBar.scale = new Vector3(1,1.5f,1); <<same result