Description of problem:
Add a user in blueprint, and add it again in kickstart file, then run rhel for edge installation, the install will fail


Version-Release number of selected component (if applicable):
RHEL 8.4

How reproducible:
Everytime

Steps to Reproduce:
1.Create a blueprint and build rhel-edge-container image.
name = "container"
description = "A base rhel-edge container image"
version = "0.0.1"
modules = []
groups = []

[[packages]]
name = "python36"
version = "*"

[customizations]
[customizations.kernel]
name = "kernel-rt"
append = ""

[[customizations.user]]
name = "admin"
description = "Administrator account"
password = "$6$GRmb7S0p8vsYmXzH$o0E020S.9JQGaHkszoog4ha4AQVs3sk8q0DvLjSMxoxHBKnB2FBXGQ/OkwZQfW/76ktHd0NX5nls2LPxPuUdl."
key = "ssh-rsa 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 ostree-image-test"
home = "/home/admin/"
groups = ["wheel"]

2. Create a kickstart file, add same user, same password, same ssh key.
text
lang en_US.UTF-8
keyboard us
timezone --utc Etc/UTC

selinux --enforcing
rootpw --lock --iscrypted locked
user --name=admin --groups=wheel --iscrypted --password=\$6\$1LgwKw9aOoAi/Zy9\$Pn3ErY1E8/yEanJ98evqKEW.DZp24HTuqXPJl6GYCm8uuobAmwxLv7rGCvTRZhxtcYdmC0.XnYRSR9Sh6de3p0
sshkey --username=admin "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQCzxo5dEcS+LDK/OFAfHo6740EyoDM8aYaCkBala0FnWfMMTOq7PQe04ahB0eFLS3IlQtK5bpgzxBdFGVqF6uT5z4hhaPjQec0G3+BD5Pxo6V+SxShKZo+ZNGU3HVrF9p2V7QH0YFQj5B8F6AicA3fYh2BVUFECTPuMpy5A52ufWu0r4xOFmbU7SIhRQRAQz2u4yjXqBsrpYptAvyzzoN4gjUhNnwOHSPsvFpWoBFkWmqn0ytgHg3Vv9DlHW+45P02QH1UFedXR2MqLnwRI30qqtaOkVS+9rE/dhnR+XPpHHG+hv2TgMDAuQ3IK7Ab5m/yCbN73cxFifH4LST0vVG3Jx45xn+GTeHHhfkAfBSCtya6191jixbqyovpRunCBKexI5cfRPtWOitM3m7Mq26r7LpobMM+oOLUm4p0KKNIthWcmK9tYwXWSuGGfUQ+Y8gt7E0G06ZGbCPHOrxJ8lYQqXsif04piONPA/c9Hq43O99KPNGShONCS9oPFdOLRT3U= ostree-image-test"
bootloader --timeout=1 --append="net.ifnames=0 modprobe.blacklist=vc4"

network --bootproto=dhcp --device=link --activate --onboot=on

zerombr
clearpart --all --initlabel --disklabel=msdos
autopart --nohome --noswap --type=plain
ostreesetup --nogpg --osname=rhel-edge --remote=rhel-edge --url=http://192.168.100.1/repo/ --ref=rhel/8/x86_64/edge
poweroff

%post --log=/var/log/anaconda/post-install.log --erroronfail

# no sudo password for user admin
echo -e 'admin\tALL=(ALL)\tNOPASSWD: ALL' >> /etc/sudoers

# Remove any persistent NIC rules generated by udev
rm -vf /etc/udev/rules.d/*persistent-net*.rules
# And ensure that we will do DHCP on eth0 on startup
cat > /etc/sysconfig/network-scripts/ifcfg-eth0 << EOF
DEVICE="eth0"
BOOTPROTO="dhcp"
ONBOOT="yes"
TYPE="Ethernet"
PERSISTENT_DHCLIENT="yes"
EOF

echo "Packages within this iot or edge image:"
echo "-----------------------------------------------------------------------"
rpm -qa | sort
echo "-----------------------------------------------------------------------"
# Note that running rpm recreates the rpm db files which aren't needed/wanted
rm -f /var/lib/rpm/__db*

echo "Zeroing out empty space."
# This forces the filesystem to reclaim space from deleted files
dd bs=1M if=/dev/zero of=/var/tmp/zeros || :
rm -f /var/tmp/zeros
echo "(Don't worry -- that out-of-space error was expected.)"

%end


3.Use kickstart file to install RHEL for edge image.

Actual results:
Installation failed.

Expected results:
Installation should succeed. 


Additional info:
At least we should document this in release notes.