Teamcenter: Can a Business Object has Two Different TAG Values ?

If you think a business object can only have one tag value, then you have to look into this.

While creation, every business object will be assigned to a tag value in DB, in other words we call it as a UID value.

But at one state this Axiom can be proved wrong. 

At the time of check-out, a duplicate object will be created with the same data in the database. After check-in the duplicated object will be deleted.

So, we can say that at the time of check-out, a business object with same id or name or blah ..blah ...blah can have two different tag values although they look same virtually. :)

Check the below screenshot in which MCO-000006 object has two different tag values.