Match address of host when checking whether to login

* Makes sure we are on the login page of the desired host before
  deciding whether we need to re-login. Currently only checks if we're
  on the login page. For Geo specs, we need to sign into different hosts

Changelog: fixed
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/73492
EE: true

qa/qa/flow/login.rb

@@ -6,8 +6,6 @@ module QA
       module_function
 
       def while_signed_in(as: nil, address: :gitlab, admin: false)
-        Page::Main::Menu.perform(&:sign_out_if_signed_in)
-
         sign_in(as: as, address: address, admin: admin)
 
         result = yield
@@ -23,9 +21,10 @@ module QA
       end
 
       def sign_in(as: nil, address: :gitlab, skip_page_validation: false, admin: false)
+        Page::Main::Login.perform { |p| p.redirect_to_login_page(address) }
+
         unless Page::Main::Login.perform(&:on_login_page?)
           Page::Main::Menu.perform(&:sign_out) if Page::Main::Menu.perform(&:signed_in?)
-          Runtime::Browser.visit(address, Page::Main::Login)
         end
 
         Page::Main::Login.perform do |login|

qa/qa/page/base.rb

@@ -386,6 +386,10 @@ module QA
         end
       end
 
+      def current_host
+        URI(page.current_url).host
+      end
+
       def self.path
         raise NotImplementedError
       end

qa/qa/page/main/login.rb

@@ -156,6 +156,11 @@ module QA
           sign_in_using_credentials(user: user)
         end
 
+        def redirect_to_login_page(address)
+          desired_host = URI(Runtime::Scenario.send("#{address}_address")).host
+          Runtime::Browser.visit(address, Page::Main::Login) if desired_host != current_host
+        end
+
         private
 
         def sign_in_using_gitlab_credentials(user:, skip_page_validation: false)