Looks to me like the V2 update broke selecting objects in a new way. Now the tab, even though it is locked gets selected when you try and copy objects. No matter which selection method i use it selects the locked tab and wants to paste it on top of itself.
This is more then a small thing since it can tale a long time to select a lot of objects tht you want to copy. all the while making sure you don't accidently click on the tab.