`public_key` and `network` in kickstart do not work when install photon os with ostree

Describe the bug

I tried to use photon-4.0-c001795b8.iso to install a photon OS with default RPM-OSTree server. And I configured network manually like below.

As a result, it didn't work! The IP address of interface eth0 was not as expect.

Futhermore, I used kickstart to auto-install photon OS with default RPM-OSTree repo, and I filled the fields public_key and network in the kickstart configuration file like below.

{
"hostname": "photon-machine",
"password":
{
"crypted": false,
"text": "password"
},
"disk": "/dev/vda",
"partitions": [
{"mountpoint": "/", "size": 0, "filesystem": "ext4"},
{"mountpoint": "/boot", "size": 128, "filesystem": "ext4"},
{"mountpoint": "/root", "size": 128, "filesystem": "ext4"}
],
"postinstall": [
"#!/bin/sh",
"echo "Hello World" > /etc/postinstall"
],
"public_key": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC4nlcKKj9xqs...",
"network":
{
"type": "static",
"ip_addr": "192.168.122.3",
"netmask": "255.255.255.0",
"gateway": "192.168.122.1",
"nameserver": "192.168.122.1"
},
"linux_flavor": "linux",
"photon_docker_image": "photon:3.0",
"photon_release_version": "4.0",
"ostree":
{
"default_repo": true
}
}

As a result, the static IP address was still not configured! And the file ~/.ssh/authorized_keys was empty.

BTW, the network and public_key worked as expect in kickstart when I didn't use ostree.

Reproduction steps

1.Use kickstart config above to build an ISO image as https://vmware.github.io/photon/docs/user-guide/working-with-kickstart/#unattended-installation-through-kickstart guide. 
2.Use the ISO to install photon OS.
3.In photon OS, check IP address of interface eth0, and the file /root/.ssh/authorized_keys
...

Expected behavior

1. The IP address of interface eth0 is 192.168.122.3/24, and the network configuration file /etc/systemd/network/99-dhcp-en.network is set correctly.
2. The publick key is added to the file /root/.ssh/authorized_keys .

Additional context

No response

Start with the kickstart configuration and the unattended-installation guide, then reproduce the RPM-OSTree installation. Check how the install handles the network settings and public_key, using /etc/systemd/network/99-dhcp-en.network and /root/.ssh/authorized_keys as verification points. Done means the static eth0 address and expected network file are present and the public key is installed.