MultiDrag with Grid indices bug

[h5aaimtron]

Problem:

If you use MultiDrag with a grid layout of the items and you select non-consecutive items, but drag from the last item to the beginning of the list, the last item always gets placed a few items away from the other items.

JSBin/JSFiddle demonstrating the problem:

Don't have one yet

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1. Try master-branch, perhaps the problem has been solved;
2. Use the search, maybe we already have an answer;
3. If not found, create an example on jsbin.com (draft) and describe the problem.

Bindings:

• Angular
  • 2.0+: https://github.com/SortableJS/angular-sortablejs/issues
  • legacy: https://github.com/SortableJS/angular-legacy-sortablejs/issues
• React
  • ES2015+: https://github.com/SortableJS/react-sortablejs/issues
  • mixin: https://github.com/SortableJS/react-mixin-sortablejs/issues
• Polymer: https://github.com/SortableJS/polymer-sortablejs/issues
• Knockout: https://github.com/SortableJS/knockout-sortablejs/issues
• Meteor: https://github.com/SortableJS/meteor-sortablejs/issues

Support screenshots:

I selected in the following order: 9, 7, 6
then I start my drag from 9 to the beginning of the list with the following result:

but 9 should be directly behind 7. It works perfectly if I drag from item 6 to the beginning though.

[h5aaimtron]

I did some more tests and its any item other than the one with the lowest index that gets the weird index. I tried sorting 3, 5, 7, 8, and 10 which resulted in 10 being the odd one out by the number of items ahead of it so its 4 back from the first 4.

[owen-m1]

A JSBin would be very helpful