Version: 5.9.2.0
I can select <No Owner> for an Owner and <No User Group> for a Group ownership for infra VM or Template and cloud Instance or Image.
Marking as verified.
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, 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-2018:1328