Profile page fails for not-logged in user

[esko-piirainen]

https://laji.fi/user/MA.1   is not working for not logged in user

Looking at the code, I assume it crashes here because there's no currentUser:

laji/projects/laji/src/app/+user/profile/profile.component.ts

Line 87 in 7332e2a

this.isCurrentUser = id === currentUser!.id;