Linux CSE is stuck in Transitioning after a reboot of the VM

Linux CustomScriptExtension stuck in Transitioning after a VM reboot.

It’s fairly easy to reproduce with a script doing “sudo reboot”. I’ve tried on Ubuntu 16.04 / CentOS 7.3.
• Status Transitioning
• Status level Info
• Status message Enable in progress

I used the Microsoft.Azure.Extensions CustomScript version 2.0.3.

.status file gives:
```json
[
{
"version": 1,
"timestampUTC": "2017-09-25T08:35:56Z",
"status": {
"operation": "Enable",
"status": "transitioning",
"formattedMessage": {
"lang": "en",
"message": "Enable in progress"
}
}
}
]
```