Dina Demalkota Dina

Same thing. Owners who are accepted in society benefit from the law of situmta, but without the law of demalkuta. And certainly when there is a law of demalkuta. In the margins, I will only note that there is a disagreement among the Rishonim regarding situmta in a matter that never came into existence (because perhaps according to the substantive law, it was not purchased, and not because of one way or another of acquisition, which is a matter of agreement).