Non-curriki member click group invitation link > Design issue noted in that screen.

In Production site, invite a non curriki member to join a group.

Click the invitation link.

Below Join This Group, Login Screen is displayed. Here, the top border is not visible. (Please refer screenshot).

This issue was not there earlier. ( See the screenshots of issue : 4685).

But, today I could see that this issue is there in beta and current as well.

Todd, please see issue : 4685 and 4686 ( Both seems related).