Description of problem:
Job template "change content source" fails to change the content source

Steps to Reproduce:
1. Register a RHEL8 client VM to satellite
2. Edit it and add correct content source manually. [It would be blank on registration]
3. Now use job template "change content source" to change the content source.

Actual results:
The job completes successfully but the actual change doesnt happen. Below is the execution log:

1:
Successfully updated the system facts.
2:
Starting deployment of REX pull provider
3:
#
4:

1. Installing packages
   5:
   #
   6:
   Updating Subscription Management repositories.
   7:
   EPEL8 41 kB/s | 2.3 kB 00:00
   8:
   Package foreman_ygg_worker-0.1.1-2.el8sat.x86_64 is already installed.
   9:
   Dependencies resolved.
   10:
   Nothing to do.
   11:
   Complete!
   12:
   Getting configuration from subscription-manager...
   13:
   enabled
   14:
   Running timer as unit: run-ra9ac2f1552b848b6b030ee4a490fe707.timer
   15:
   Will run service as unit: run-ra9ac2f1552b848b6b030ee4a490fe707.service
   16:
   Remote execution pull provider successfully configured!
   17:
   Exit status: 0

Expected results:
The content source should be changed