AdvancedForm throws ReferenceError "Property text not found...."

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a simple AdvancedForm with a text input
2. Launch and select the field
3. Do ctrl-tab to change focus on another application

You get the following error:
ReferenceError: Error #1069: Property text not found on
mx.containers.FormItem and there is no default value.
    at
flexlib.containers::AdvancedForm/textInputChange()[/Users/dougmccune/Documents/F
lex
Builder Moxie/flexlib/trunk/src/flexlib/containers/AdvancedForm.as:339]
    at flash.display::Stage/set focus()
    at
mx.controls::TextInput/focusInHandler()[C:\autobuild\3.2.0\frameworks\projects\f
ramework\src\mx\controls\TextInput.as:2104]

What version of the product are you using? On what operating system?
flexlib-.2.4
flex 3.2

Please provide any additional information below.
I took a look at AdvancedForm and the problem is coming from
"textInputChange". It is doing "event.target.parent.text" but I think it
really should be "event.target.text". Not sure why it would look at the
parent, since the parent is not a TextInput and does not have the "text"
attribute.

Here is code to duplicate:

<?xml version = "1.0" encoding = "utf-8"?>
<mx:Application xmlns:mx = "http://www.adobe.com/2006/mxml"
                xmlns:flexlib = "http://code.google.com/p/flexlib/"
                layout = "absolute"
                width = "400"
                height = "500">
   <flexlib:AdvancedForm id = "myForm"
                          undoHistorySize = "5">
        <mx:FormItem label = "First and Last Names"
                     required = "true">
            <mx:TextInput id = "firstName"/>
            <mx:TextInput id = "lastName"/>
        </mx:FormItem>
    </flexlib:AdvancedForm>

</mx:Application>

Original issue reported on code.google.com by bautista...@gmail.com on 30 Jun 2009 at 6:06