Editpane not allowing to drop from ListPalette

Hi there,

I am trying to build a POC on drag and drop palette node from ListPalette to EditPane. But the EditPane is not allowing to drop by showing no-drop indicator.

It is getting added to Editpane when I double click an item in the ListPalette.

I am using the souce code from
http://www.smartclient.com/smartgwte...e/#listPalette

Everything is working fine for me except I am not able to drop items from ListPalette to EditPane

Any help on this would be greatly appreciated