I created a Use Case Diagram and added some Use Case items. Now I would like to move multiple items, so I mark them by holding the left mouse button and spanning the rectangular (or by holding shift key and click on the items).

Reproducible: Always

Steps to Reproduce:
1. Create Use Case diagram
2. Add Use Case items
3. Mark multiple items
4. Drag & drop one of the selected items from current position to any other position
Actual Results:  
Only the item I clicked on is moved.

Expected Results:  
All selected items are moved in parallel.