[artjomb]

A fingerprint is there to either identify you or confirm that it is you. Now, if we would allow the software to accept a smooth fingerprint as assign it to a person then this would allow anybody to impersonate that person without additional identification means. This is not a software bug, but a security feature.

Of course the software should be able to detect that there is no fingerprint and require the operator of that software to check for the identity by other means.

Sometimes we don't always have human operators and more things are automated.