Sortable inside Sortable ?

Sortable inside Sortable ?

I am using jQuery draggable + sortable plugin.

When I drop a draggable inside a sortable that is inside multiple sortables, it creates a copy (using the clone helper) of the LI in the target Sortable as well as the target sortable's parent sortables.

Desired is that it should create only one clone where the element is dropped.

Kindly help me.