Bug re-adding unused disk

[totalimpact]

I was trying to re-add an unused disk to a VM, and it failed showing the warning below, I check the conf file, and there is no duplicate for the size.

5.1-43, Latest updates as of today.

Error: Parameter verification failed. (400)

 

[tom]

post your vm config

> qm config VMID

 

[totalimpact]

agent: 1
bootdisk: virtio0
cores: 4
ide2: local:iso/virtio-drivers.iso,media=cdrom,size=309208K
memory: 5120
name: TestWin7
net0: e1000=5E:92:08:E8:D1:9C,bridge=vmbr0
numa: 0
ostype: win7
scsihw: virtio-scsi-pci
smbios1: uuid=b82d3965-e6b5-4436-a47b-45ad2a0b2b2f
sockets: 1
unused0: local-lvm:vm-128-disk-1

But strangely it started working correct again.