How do I find out from which revision an object was created?

Hi, 

I am creating a new revision with the "New Revision from" command. Unfortunately, I can't find a way to find out from which revision it was created. I assumed that the attribute in the "Collaborative Lifecycle" "Created From" shows me from which revision the object was created. However, it remains empty. In the structure tree, I can see that the function has been used, but not where it comes from. Is there a solution?