Description of problem:

Applying errata using web ui (katello-agent)" does not work. Task completes with "Success" status.

Issue is with RHEL 8 clients (only).

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

Red Hat Satellite 6.5
RHEL 8.0

How reproducible:

Always

Steps to Reproduce:

Satellite Web UI -> Hosts -> Content Hosts -> Select the host -> Errata -> Select the Errata & apply using "Katello-agent".

Actual results:

Task gets completes with no error but it does not install the errata. 

Expected results:

It should install/update the errata 

Additional info:

Same old bugzilla with the KCS.

~~~
[1]. Bug 1481779 - Applying an Errata from WebUI does not work and wrongly indicates a Success result.
---> https://bugzilla.redhat.com/show_bug.cgi?id=1481779

[2]. [Satellite6.2.11] Applying an errata via katello agent does not update anything
---> https://access.redhat.com/solutions/3153581
~~~

* Package or group of packages can installed/updated using the same method without any issue. Issue is only with the Errata.

* Tested the same on RHEL 7 machine, it works as expected.