Drag and Drop focus

When trying to drag a item from a tree to another component, in my case a textfield inside a DragAndDropWrapper, if the focus is previously in the textfield (for instance, delete the text), when the drag starts the textfield do not lose focus preventing the value being updated. When i merge the value from textfield to the value being dragged the result is the deleted text plus the text dragged.

This works ok on internet explorer (in fact the textfield lose focus here and the value merge is the current visible text plus the dragged text) but on chrome and firefox I do not have the desired behavior.

I am using vaadin 6.5.2, but tested with the latest version and the issue remains.

Hope you can help me…