For some actions, it is possible to lose data entered into form / wizard. This generally occurs whenever there is a failure on server side after sending a form containing invalid data (due to missing client-side validation or no possibility to validate users input). An example of such action would be a creation of new datasource with existing name. Regardless the error, "New Datasource" wizard is closed after clicking on "Done" button in the last step and everything is lost. Action as "closing wizard" or switching form back to view mode should happen only after receiving server response with no errors.
Postponed to EAP 6.3
In agreement with Catherine we've decided that UX issues will be tracked separately.
Issue moved under the UX component. Also moved to 6.4 as this issue is still valid for 6.3. Use ack flags to decide whether we want to go through with it or not.
UX to bundle this into the wizard design w/ validation & checking work for EAP 7.
I't s not a bug nor a UX issue: The data is send to the server and then refreshed. Regardless if the operation fails or not, the most recent data is fetched. I would close this as rejected.