When editing an entity twice a concurrency exception is thrown when using the backspace (browser back) anywhere in the application.
- load fixtures
- open arbitrary todo
- click edit, change description, click save
- again, click edit, change description, click save
sven attempted to update TODO:L_23, however this object has since been modified by sven at Mon Dec 02 18:13:13 CET 2013 [3 vs 2]