What does Site Details Changed attribute mean in Internal Supplier Profile Change Approval

I have one rule set up with a condition of Site Details Changed = Yes, which has an action to go to an approver. Another rule is defined with Site Details Changed = No which should get autoapproved. I tested several updates to a supplier site, one at a time. All of them got autoapproved and didn't go to approver, so the condition of Site Details Changed = No is getting fulfilled. This is not the expected behavior. I updated payment terms, then site name, then site purpose. All requests got autoapproved. So what changes to the site would fulfill