Sessions fail after server restart

[Marko Gronroos]

The problem is the same as the one fixed in [5900] and [5901], but it now occurs only in a special situation when there is a window open already from a previous session, for example after server restart. If there already is an application-level window open from the time before the restart, having the application open a new window of the same kind will cause a session error. The problem might occur also if there was just a session timeout.

Steps to reproduce:

1. Start server
2. In Feature Browser, select Misc/Windowing view
3. Click "Open an application-level window with shared state" OR "Create a new application-level window with its own state".
4. As a new window (or tab) opens, leaven it open and don't touch it.
5. Restart server
6. Reload Feature Browser and select Misc/Windowing view again
7. Click the same link as before. The "new window" will actually load in the same window as before.
8. Now if you do anything in the FB window, it will result in session error.

The problem occurs at least with FF3.