initrd: hostname not getting set when using static networking

For the network-legacy dracut module it sets the transient hostname of the machine if provided via static networking ip= args. For nm-initrd-generator it looks as if it just sets ipv4.dhcp-hostname in the config, which I don't think has any effect for a non-dhcp connection.

Is there a setting we should be populating with nm-initrd-generator to get the transient hostname to be applied by NM when a connection is started even if it's not a DHCP based connection?