ui.helper is null when using sortable cancel

[be.davestein]

I have a sortable and a droppable.

On drop I call sortable('cancel') and then append ui.draggable to the droppable.

ui.helper is null exception gets fired.

Current workaround is to setTimeout of 5 on my drop callback.

[be.davestein]

I'm guessing this might not be fixed until 2.0 but wanted to file it away for future reference

[dgkaba]

Confirmed having the same problem, looking for a workaround :-S

[petersendidit]

Duplicate of #6954.