Can't change SELinux user home directory file owner

[arnaud gaboury]

Looking at more closer at my SELinux settings (Fedora 29 Atomic), I found this:

----------
semanage login -l

Login Name           SELinux User         MLS/MCS Range        Service

__default__          unconfined_u         s0-s0:c0.c1023       *
root                          system_u             s0:c0.c1023           *
-------------------------------------

I can’t remember if I did the change, but following RedHat or Fedora
documentation, root should be an unconfined user, right?
So I did the change this way:
-----------------------------------------------------
# semanage login -m -s unconfined_u -rs0:c0.c1023 root
# semanage login -l
...
root                 unconfined_u         s0:c0.c1023          *
# id -Z
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
----------------------------------------------------------
Fine. Now let's list the root directory:

--------------------------------------------
# pwd
/var/roothome
# ls -alZ
....
-rw-r--r--.  1 root root system_u:object_r:admin_home_t:s0    18 May
28  2018 .bash_logout
-rw-r--r--.  1 root root system_u:object_r:admin_home_t:s0   193 May
28  2018 .bash_profile
-rw-r--r--.  1 root root system_u:object_r:admin_home_t:s0   231 May
28  2018 .bashrc
....
-------------------------------------------------

I thus wanted to change system_u to unconfined_u (Do I need to do it?)

-------------------------------------------------------
# semanage fcontext -m -t admin_home_t -s unconfined_u "/var/roothome(/.*)?"
ValueError: File context for /var/roothome(/.*)? is not defined
# semanage fcontext -a -t admin_home_t -s unconfined_u "/var/roothome(/.*)?"
# cat /etc/selinux/targeted/contexts/files/file_contexts.local
....
/var/roothome(/.*)?    unconfined_u:object_r:admin_home_t:s0  <-- sounds OK
# restorecon -R -v  /var/roothome
# ls -alZ
...
-rw-r--r--.  1 root root system_u:object_r:admin_home_t:s0   193 May
28  2018 .bash_profile
-rw-r--r--.  1 root root system_u:object_r:admin_home_t:s0   231 May
28  2018 .bashrc
...
-----------------------------------------------------
No changes. Why? Do I need to change to unconfined user, and if yes, how?

Thank you for help.