Major Description
Steps to reproduce:
1) Create a list view with selectMode="multi", and attach a drag source to it.
2) Select multiple items, then click to drag the selection out of the list view.
Expected behavior:
You expect the multiple items to be dragged
Actual result:
Upon mouse down, the selection is reset to be a single item, causing you to drag just one item.
Workaround:
If you hold down CTRL or SHIFT as you begin your drag, you can kind of work around this issue, but that is obviously a less-than-ideal user experience.
Note that this could affect TableView and TreeView as well, though they weren't tested as part of this ticket.