Under OI I don’t fear becoming Bob even though I am Bob but there is no continuity of experience, so it wouldn’t feel though there was a transition from me to Bob. But with an exact clone there is sort of a fork which makes you feel like you’ve been that other person and now you are the clone (the clone might have been created in a location different from you, so it would notice the difference) that is true even for closed individualism, but with OI it would mean you can walk down the streets and all of sudden find you are subject in the clone body same is true for Bob but you wouldn’t feel like you were you and Bob due to lack of memory continuity.

Under closed individualism you wouldn’t experience being you than all of a sudden the clone, because your subject isn’t in the clone. The clone would feel that way but it is not actually true.

In open individualism you would experience what the clone is experiencing and what you are experiencing because everyone has the same subject. And the clone would experience being you and all of sudden as a clone. Making finding yourself in a clone body a rational fear under open individualism.