ubuntu 20.04 / netplan / change mac address and static ip

I wasn't able to set together a virtual mac address and a static IP using netplan: either the mac address didn't change, or IP was not set.
I finally got the trick using a fake nic definition that matches the new virtual mac address I've set.

 

 network:
  renderer: networkd
  ethernets:
    ens160:
      match:
        macaddress: 00:0c:29:5a:69:00
      macaddress: 00:50:56:0c:de:a6
    ens160_2:
      match:
        macaddress: 00:50:56:0c:de:a6
      addresses: [ 139.99.5.72/32 ]
      nameservers:
        addresses: [ 8.8.8.8 ]
      routes:
      - to: 0.0.0.0/0
        via: 139.99.5.254
        on-link: true
    ens192:
      addresses: [192.168.103.14/24]
      #dhcp4: true
  version: 2