Moving this bug to POST for triage into Satellite 6 since the upstream issue https://projects.theforeman.org/issues/24272 has been resolved.
Verified in Satellite 6.5.0 Snap 13
Installed a Satellite 6.3
Added subscriptions (one that provides guests)
Registered a client with that subscription
Updated the quantity to 5 (psql)
Upgraded the Satellite to 6.4.1
Confirmed that the error was shown
Upgraded the Satellite to 6.5.0 Snap 13
No error is present, and the quantity is still correctly showing as 5.
For RH Internal, see attached video for verification.
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.