"New platform architecture" action reliably crashes if we deleted a previous DSE
- create a project
- add a CA (you can leave it empty)
- add a platform architecture (you can leave it empty)
- add a DSE (you can leave it empty)
- delete the DSE
- delete the platform
- try to create a new platform
->nothing happens
->exception in the log
(from redmine: issue id 1967, created on 2014-02-28, closed on 2014-02-28)