Shadow applied incorrect on scale

[iskiselev]

When we apply scale, it is not applied to shadowBlur and shadowOpacity. Here is example: http://jsfiddle.net/qDPq8/3/

var stage = new Kinetic.Stage({
  container: 'container',
  width: 500,
  height: 500
});
var layer = new Kinetic.Layer();

var rect = new Kinetic.Rect({
 fill: 'red',
 shadowOffset: {x:5, y:5},
 shadowBlur: 10,
 shadowOpacity: 0.6,
 x: 30,
 y: 30,
 width: 100,
 height: 50
});

layer.add(rect);
stage.add(layer);
stage.scale({x:0.1, y:0.1});
stage.draw();

When I apply 0.1 scale, I suppose that scale blur will be only 1 pixel more then shape and it should be under shape - but it is still with 5 px offset.