Tree itemEditor property requires the item editor to define text property (not required by IListItemRenderer interface)

Steps to reproduce:
1. Implement IListItemRenderer in a component which extends UIComponent and defines set/get data.
2. Specify this component as itemEditor for Tree control.
3. trest:

Actual Results:
ReferenceError: Error #1069: Property text not found on my.*******.RemoteTreeItemEditor and there is no default value.
at mx.controls::List/itemEditorItemEditEndHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2823]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:11749]
at mx.controls::List/endEdit()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2378]
at mx.controls::List/deactivateHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2599]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:11749]
at mx.controls::List/endEdit()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2378]
at mx.controls::List/editorMouseDownHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2625]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:11749]
at mx.controls::List/endEdit()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2378]
at mx.controls::List/editorMouseDownHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\List.as:2625]

Expected Results:
No error, or, set text() must be mentioned in IListItemRenderer interface.

Workaround (if any):
Add set/get text() property to the item editor.