Event Delegation Unreliable for Dragged Links

[Copyrites]

With event delegation mode turned on, dragging a link from one window to another results in unreliable cleaning. Judging by appearances it might be a race condition between the click event invoking the cleaning and whatever mechanism is invoked to start dragging the link.

The CopyLink controller setting does not seem to make a difference. Perhaps it just needs to be hooked into firefox's drag-and-drop callback?