I upgraded the open source version of 3.0.1 to 3.1 this morning.

My hostname is abc. And I got a dns setting that say efg points to the global ip of abc.

with 3.0.1, I used to be able to put efg.mydomain and the web url will not change even after login.

After I have upgraded, when I put efg.mydomain, I still see the front page but when I login using my username and password, the url changes from efg.mydomain to abc.mydomain which is unresolvable.

Is there anything that change on this? How can I solve it?