1. OGP teleport into a supported region.
2. Teleport to another instance.
3. In console, agent is still simulated, and does not timeout.
If you remove the user from console, using kickuser <first> <last>, the user remains connected.
If you do not kickuser, then when you shut down the instance, the user's session is ended.
Problem does not occur on OpenSim instance running multiple regions.
See notes on Mantis issue.