Optimistic concurrency exception: entities may have been modified

What steps will reproduce the problem?
1. Intermittent issue
2.
3.

What is the expected output? What do you see instead?

- Optimistic concurrency exception: entities may have been modified

What version of the product are you using? On what operating system?
 - 2.5.1, Windows Server 2008

Please provide any additional information below.

Original issue reported on code.google.com by robertsu...@gmail.com on 24 Sep 2013 at 3:25

smartdevkz / dropthings

Optimistic concurrency exception: entities may have been modified #257