Believe I've downloaded mods for other games where the info said that the mod was the property of the original owner, and that all changes would also belong to the original owner should he return and claim it. Don't know if this is a common/accepted way of doing things though.

So you mean if I ...

Believe I've downloaded mods for other games where the info said that the mod was the property of the original owner, and that all changes would also belong to the original owner should he return and claim it. Don't know if this is a common/accepted way of doing things though.