Reset worldTransforms of children after computing local bounds.

Author: CTOStone

src/pixi/display/DisplayObjectContainer.js

@@ -384,6 +384,11 @@ PIXI.DisplayObjectContainer.prototype.getLocalBounds = function()
     var bounds = this.getBounds();
 
     this.worldTransform = matrixCache;
+	
+    for(var i=0,j=this.children.length; i<j; i++)
+    {
+        this.children[i].updateTransform();
+    }	
 
     return bounds;
 };