cannot login with openid on custom domain (BB-837)

After login, it redirects me to bitbucket.org, not hg.example.com.
When I'm returning to hg.example.com I'm not logged in.

Also, when after manual login my newsfeed is empty, but it may relate to http://bitbucket.org/jespern/bitbucket/issue/2146/neewsfeed-not-updating