Comment 10 for bug 1441913

Sadly the fix suggested in post 5 doesn't seem to have done anything (and yes, it is still both up and broken, so fee free to throw tests/fixes our way and we'll try them out)

machine-0.log shows this after manually resetting upgradedeToVersion:

2015-05-11 10:33:02 INFO juju.cmd supercommand.go:37 running jujud [1.20.11-trusty-amd64 gc]
2015-05-11 10:33:02 INFO juju.cmd.jujud machine.go:158 machine agent machine-0 start (1.20.11-trusty-amd64 [gc])
2015-05-11 10:33:02 DEBUG juju.agent agent.go:377 read agent config, format "1.18"
2015-05-11 10:33:02 INFO juju.cmd.jujud machine.go:169 no upgrade steps required or upgrade steps for 1.20.11 have already been run.
2015-05-11 10:33:02 INFO juju.worker runner.go:260 start "api"
2015-05-11 10:33:02 INFO juju.worker runner.go:260 start "statestarter"
2015-05-11 10:33:02 INFO juju.worker runner.go:260 start "termination"
2015-05-11 10:33:02 INFO juju.state.api apiclient.go:242 dialing "wss://localhost:17070/"
2015-05-11 10:33:02 INFO juju.worker runner.go:260 start "state"
2015-05-11 10:33:02 INFO juju.state.api apiclient.go:250 error dialing "wss://localhost:17070/": websocket.Dial wss://localhost:17070/: dial tcp 127.0.0.1:17070: connection refused
2015-05-11 10:33:02 ERROR juju.worker runner.go:218 exited "api": unable to connect to "wss://localhost:17070/"
2015-05-11 10:33:02 INFO juju.worker runner.go:252 restarting "api" in 3s
2015-05-11 10:33:02 INFO juju.mongo open.go:104 dialled mongo successfully
2015-05-11 10:33:05 INFO juju.worker runner.go:260 start "api"
2015-05-11 10:33:05 INFO juju.state.api apiclient.go:242 dialing "wss://localhost:17070/"
2015-05-11 10:33:05 INFO juju.state.api apiclient.go:250 error dialing "wss://localhost:17070/": websocket.Dial wss://localhost:17070/: dial tcp 127.0.0.1:17070: connection refused