No, it's the latest 1.x code.
I just tried again on a new default install (without installing the Profile module though). This time, the User content type was there (I didn't think it was before I'd installed the Profile module before, but I'm probably mistaken).
So looking at the User content type - there is no Common part there.
I did add containable though & again the List & "Create new user" from the list had the same problems as I described.
After I posted, I realised that probably the Projector module will be best for lists of users anyway? (just guessing). In which case none of this is really a problem, aside from the fact then any newbie admin user like me could break their Users dashboard
I would create an Issue, but it's still a bit vague to me...!