Looks like we can't reproduce the issue or there's a problem in the test case provided.
Drag n Drop of Multi Select Enabled Grid rows can result in wrong ordering
Best way to describe this is with the supplied Grid to Grid DnD example:
If you select Row 0 & then ctrl-select Row 1 it works as expected. Seen in ExtJS 4.1.1 & 4.2.0. BTW, this is also true with DnD of multi-selects within one grid though you can't do that with the example code.
- Click on Row 1 to select
- Ctrl-Click on Row 0 to add the selection
- Drag to the other grid
- Row 1 is above Row 0!
This is because of the selection model keeps your selection in order that you select them so if you do
after step 2 you will see the order there has row 1 first. The 2nd grid's store you can have a sorter to get around this.
I would still consider this unintuitive or at least undocumented.
That's what I thought was going on, but I can live with it.