[MM3-users] How to change the showed URL/Domain of archives navbar?

Hello, our first Domain was lists-test.mydomain.de. After this we added our real domain lists.mydomain.de and our migration from mailman2.1 has finished :-) When you go to lists-test.mydomain.de/archives/ in the the navbar only the name of our first test-domain is shown (lists-test.mydomain.de). How can we set the other domain there? I have tried to change the order of our two domains in the settings.py - without success. Our domains are: lists-test.mydomain.de has SITE_ID = 1 lists.mydomain.de has SITE_ID = 2

Thank you and regards, Ulf