Description of problem:

In Administer --> Settings --> Boot Disk page, The Value of "Allowed bootdisk types" shows up as subnetfull_host where as it is set as subnet,full_host in Satellite 6.12

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

Satellite 6.12

How reproducible:

Always

Steps to Reproduce:
1. Install a Satellite 6.12

2. Go to Administer --> Settings --> Boot Disk page and check the value of "Allowed bootdisk types"

Actual results:

It shows up as "subnetfull_host" whereas if we edit the value, we will be able to see that it is set as "subnet,full_host"

Expected results:

UI should show the Value properly.

Additional info:

It 's a regression as in 6.11, it used to show up like this in UI,

[subnet, full_host]

whereas backend value set was -> subnet,full_host

This looks much better than how we display in in 6.12