No such luck.
When you import a photo into BookSmart it allocates it a unique name rather than using the name of your original file. So if you import the same photo again it will be given another unique name. So in BookSmart's terms there can be no duplicates.
Initially sounds daft but if you are using photos from multiple sources (such as different family members) you could well get (say) three quite different photos each named Dad-001.jpg