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Description of problem:
https://community.theforeman.org/t/hammer-host-create-fails-with-error-usergroup-not-found/20374
I reproduce issue described in https://projects.theforeman.org/issues/30814 
with satellite 6.9 snap 16


How reproducible:
Always

Steps to reproduce:
1. create host and user
2. update host owner
this don't work
hammer host update --id="61" --owner="QcSyNy"'
this work
hammer host update --id="60" --owner="MwOZeYtnRXAB" --owner-type="User"'

Actual results:
Unable to update a host without owner type.

Expected results:
Use some default one. User for example.

Additional info:
Not sure if this bug does not already exist.

Connecting redmine issue https://projects.theforeman.org/issues/30814 from this bug

Moving this bug to POST for triage into Satellite since the upstream issue https://projects.theforeman.org/issues/30814 has been resolved.

Verified with sat 6.10 snap 4.

hammer host update --id 3 --owner='user1'
>>> Host updated.

the previous functionality works as well
hammer host update --id 4 --owner='user2' --owner-type="User"
>>> Host updated.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Moderate: Satellite 6.10 Release), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2021:4702