Draggable: helper doesn't get removed if draggable has been removed during drag

[PvZ]

When a Draggable uses a helper, the helper is not correctly removed if the Draggable has been removed while dragging. An example can be found at ​jsfiddle. Unfortunately the example uses jQuery UI 1.8.7, which suffered from additional bugs around removal of Draggables while dragging. Reproducing the actual issue will require 1.8.9 or WIP code.

From what I can tell, the problem seems to lie in the following bit of Draggable (around line 197).

//if the original element is removed, don't bother to continue
if(!this.element[0] || !this.element[0].parentNode)
    return false;

Changing this to the following seems to help:

//if the original element is removed, don't bother to continue
if(!this.element[0] || !this.element[0].parentNode) {
    this._clear ();
    return false;
}

[PvZ]

The jsfiddle-link I posted in the ticket also exhibits a second bug I was going to report separately. ​jsfiddle should only exhibit the original issue.

[mikesherov]

confirmed: ​http://jsfiddle.net/RBT6A/ and related to #6871

[mikesherov]

Duplicate of #6871.
Confirmed this is caused by the same thing as #6871