[libvirt] [RFC] changing/regenerating domain uuid on migration

Hi all. Consider next usecase. There are active domain DA on host A and active domain DB on host B and the uuids of domains are the same. This is quite uncommon of course but still possible. If we have option to change uuid on migration then migration of DA to host B is possible and if we don't have the option we have to stop/edit/start DA to migrate. What is you opinion on subject? Can this functionality be taken into upstream and in what form? In form of setting uuid as a migration parameter or option to regenerate uuid on destination? Nikolay