DropDownExtender for a Control inside another DropDownExtender?

I currently have one DropDownExtender that shows a Panel with another Control, this case a Label, and another DropDownExtender uses that Label as its target. Like a menu inside of a menu. But when I hover over the Label inside of the first DropDownExtender's Panel, the DropDownExtender that appears is very far off from where it should be. Is it possible to nest DropDownExtender's like this at the moment? Or is this just a bug for now?

Hi,

Can you fire an issuehere?

Thank you.