[clamprecht]

I see this like I see a bug bounty. The bug is the fact that they were able to buy the property at all under those circumstances. Their bounty "reward" should be that they can keep the property that they rightfully bought. And now the public is aware of this problem ("bug") and can move to prevent it from happening in the future.

[harryh]

A bug bounty os a program run voluntarily by the owners of a service.

This is more like exploiting a security hole and then claiming a moral right to your gains.

[clamprecht]

They're claiming a legal right.

[harryh]

Use whatever adjective you want, the comparison still doesn't make any sense due to the involuntary nature of the situation.