UpdatedConcurrencyException: The object |0 was updated by another user. Determine if these changes will conflict, resolve ...

UpdatedConcurrencyException: The object |0 was updated by another user.  Determine if these changes will conflict, resolve any differences, and reapply the second change.  This error may also indicate a programming error caused by obtaining two copies of the same object in a single thread.|3Previous update information: |1|3Current update information: |2|3