Duplicate Exactly has become default option on right click..

For some reason on my user when I right click on a file "duplicate exactly" rather than the standard "duplicate" has become my default option - I have to press the Apple key to get it revert to standard duplicate.

If I create a new user this isn't the case - anyone any idea how on earth I've managed to do this with my user and how I can revert to standard duplicate?

Fixed it - running

defaults delete -g

from Terminal restored the strange setting to standard.