[Shotwell] Mistaken Duplicates?

[Gary Lawrence Murphy]

I have only just installed shotwell from the website into Ubuntu 10.04

The attached screenshot pretty much captures it: the test for duplicate
photos appears to be far too naive as we can see the dialog rejecting images
as duplicates where in the sidebar the images are clearly unique

or am I merely misunderstanding the meaning of 'duplicate'?  the dialog also
might want to say what files it believes are the originals.

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