mootools/mootools-more — pull request #1196 by alain-andre (2013-05-30 03:32:43+00:00)
Title: Allowing the refresh of droppables on start dragging.

If refreshDroppables is set to true, when starting the drag, it will refresh the droppables list so it can take the newest DOM objects in consideration.

cf. http://jsfiddle.net/wordsbybird/TAVfk/