netplan assigns local-link addresses when local-link is diabled

netplan will assign an ipv4 address by default, even if link-local is set to an empty set (link-local: [ ]) to disable it.

The commends in the source suggest that if no address is specified, then link-local should be enabled, and the code does not check it link-local is disabled.

This is faulty logic as you may have stacked interface (example: Physical<VLAN<bridge) where I only want the top (Bridge) to have an address assigned, and neither the Physical or VLAN should be assigned any address. As it is, netplan will would enable link-local for all the lower interfaces that do not have addresses assigned.