Windows 11 Sandbox vs reboots vs serial number

Windows 11 Sandbox survives reboots (Windows 10 Sandbox didn’t), which is an awesome, except that on reboot the VM gets a new serial number, which in turn means that ImmyBot has concerns and reregisters it as a new device.

I think this is probably a deal-breaker for it’s use with ImmyBot for things that need a reboot.

Has anyone else explored this already? I can’t see any “persist serial number” options at first glance…