If two users edit, at the same time, an object with object relations field, the order of the related objects is changed without (apparent) reason.

Steps to reproduce

• Create a class with two fields: title (text line), relations (object relations - browse)
• Create an object of this class. Give it a title and select 3 or more objects into relations field
• Edit the object (do not publish it yet)
• In a different browser, edit the same object using a different user (you'll need to create a new draft)
• Publish the object, without changing anything, with the first user
• Publish it, without changing anything, with the second user
• View the results
  => Expected result: Since nothing was changed while editing, nothing should had changed
  => Actual result: The object relations list order is reversed