duplicate nameservers in resulting netplan config file

[rudy-l]

Hi, question about dns_server_list variable.
When I configure multiple nics the resulting netplan config file is something like that :

# Generated by VMWare customization engine.
network:
  version: 2
  renderer: networkd
  ethernets:
    ens192:
      dhcp4: no
      dhcp6: no
      addresses:
        - 192.168.0.1/24
      nameservers:
        addresses:
          - 192.168.2.1
          - 192.168.3.1
    ens224:
      dhcp4: no
      dhcp6: no
      addresses:
        - 192.168.1.1/24
      gateway4: 192.168.1.254
      nameservers:
        addresses:
          - 192.168.2.1
          - 192.168.3.1

I guess if this is the expected behaviour ?
My deployment pipeline (Kubespray) needs these nameservers entries and try to add all of them (4) as upstream DNS, unfortunately this is refused as max number is 3.

Thanks