Thanks for raising this question around draft view and publication. If both users have administration permissions in the space where the document is posted, then they'll both be able to view the draft (via the "Manage versions"). This is also true for system administrators as well. Unfortunately, this is expected behavior, since all mentioned users have administration over the content in this place.
I hope that clarifies the question for you. Let me know if you had any other questions on this.
Hi, Jeph Yang, Jumping in on this thread two months old, so apologies. I "think" the answer to my question is in yours, but want to be sure. Does this mean that as the site admin, I can only see draft documents by people who are admins of a space, or can I search and find draft documents by searching a user?