PVE host and PVE guest on ZFS, rpool fails to import

Hi, I have a Proxmox host installed on ZFS, with the default pool name 'rpool'.
Recently I installed an NVME drive, passed that through to a VM, and installed Proxmox on that VM directly to that passed through drive, also with the default pool name 'rpool'

So the issue might be obvious, but what is happening is when I reboot the host initramfs tries to import 'rpool' and finds more than one matching pool and drops me into the BusyBox shell, where I can successfully import using the pool ID...

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