FormItem direction attribute does not work correctly for horizontal value.

Steps to reproduce:
1. Create new MXML

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Form x="181" y="119" width="633" height="419">
<mx:FormItem label="Label" direction="horizontal" width="570" height="148">
<mx:Button label="Button"/>
<mx:Button label="Button"/>
</mx:FormItem>
<mx:FormItem label="Label" direction="vertical" width="568" height="156">
<mx:Button label="Button"/>
<mx:Button label="Button"/>
</mx:FormItem>
</mx:Form>
</mx:Application>

2. Run the Example
3.

Actual Results:
The Buttons are not listed horizontally in the formitem element.

Expected Results:
Horizontal alignment.

Workaround (if any):