FacebookBatchRequest returns null objects

What steps will reproduce the problem?
1. Create multiple batch requests. Each batch is filled with 
"/FRIEND_ID/achievements" requests. Once one is done being processed send the 
next.
2. Null objects inside FacebookBatchRequest.

What is the expected output? What do you see instead?
Expected result is to get friend's achievement array. Instead I get a null 
object reference which breaks the app.

What version of the product are you using? On what operating system?
SWC: 1.8.1 Desktop
OS: Windows Xp/Windows 7

Please provide any additional information below.
Error output:

TypeError: Error #1009: Cannot access a property or method of a null object 
reference.
    at com.facebook.graph.net::FacebookBatchRequest/handleDataReady()[C:\Users\facebookGraphApi\api\com\facebook\graph\net\FacebookBatchRequest.as:195]
    at com.facebook.graph.net::AbstractFacebookRequest/handleDataLoad()[C:\Users\facebookGraphApi\api\com\facebook\graph\net\AbstractFacebookRequest.as:269]
    at com.facebook.graph.net::AbstractFacebookRequest/handleURLLoaderComplete()[C:\Users\facebookGraphApi\api\com\facebook\graph\net\AbstractFacebookRequest.as:248]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at flash.net::URLLoader/onComplete()

Original issue reported on code.google.com by aman...@magmic.com on 27 Jan 2012 at 7:33

AnthonyLins / facebook-actionscript-api

FacebookBatchRequest returns null objects #407