Well, i am speaking of logical names as DH0:, not Workbench: or anything else.
I can't type in a CLI copy all DH0: to DH0: without any confusion.
I could also give the logical name HD0: instead to the new disk, but i prefer to clone properly to not confuse paths and assigns.
The last time I put two hard disks with a conflicting device name (DH0:, as it happens) into an amiga, the second disk ended up automatically assigned the device name DH0.1:, and that was in the OS3.1 days.