Hi Guys,
I've been testing this question since a few others have noted the DB is not connecting and I do believe it is a problem. If you open the report using the engine and log on and then close the report it disconnects. True as always...
But if you preview the report and close the viewer it does not disconnect the DB connection. Only disconnects when the app is closed.
Setting the Viewer to Null does not work either.
I'll ping the developers and get them to verify the issue and escalate and should have the fix in SP 13...
Don