how to settle internal conflicts on domain claims within the platform

[KC-Zhang]

case 1:
Let's say paul added yellowduck.com to his site, and then Amy also want to add yellowduck.com to her site later. Is there a way to issue new TXT record to settle the conflicts of claims?

case 2:
Let's say i created a "site 1" and added "yellowduck.com" to it. Then a year later, i create "site 2", and want to re-assign "yellowduck.com" to "site 2". Is there way to achieve that without forcing user to go back to "site 1" and take the domain off first?