I have 2 sortable - list. i can move the items from the first into the second and from the second to the first.
see javascript
Position.includeScrollOffsets = true;
Sortable.create(id1, {ghosting:true,dropOnEmpty:true,containment:[id1,id2],constraint:false});
Sortable.create(id2, {ghosting:true,dropOnEmpty:true,handle:'handle',containment:[id1, id2],constraint:false, onUpdate:function(){$(objekt).value=Sortable.serialize(id2);}});
So I have in the first List 1 Item and in the second nothing (0). Now the user move the item von list1 to list2. list2 is not empty, but sometimes i don't see it in my textfeld (the item..it now right in the secondlist). than i dropped the item (list2 is not empty) und move it into self (list2) than i saw it in the textfeld.
it's only, than the list (list2) is empty!!