Description of problem: Red Hat Satellite 6 upgrade fails with Error : Error while evaluating a Function Call, Class[Apache]: parameter 'trace_enable' expects a match for Enum['Off', 'On', 'extended']

Version-Release number of selected component (if applicable):6.12

How reproducible: always

Steps to Reproduce:

1. Uncomment parameter "apache::trace_enable: Off" from file /etc/foreman-installer/custom-hiera.yaml

2. Now try to upgrade satellite from 6.12 to 6.13.

3. Upgrade will fail with below error.
~~~~~~~~
[ERROR ] [configure] Evaluation Error: Error while evaluating a Function Call, Class[Apache]:
parameter 'trace_enable' expects a match for Enum['Off', 'On', 'extended'], got Boolean (file: /usr/share/foreman-
installer/modules/foreman/manifests/config/apache.pp, line: 161, column: 5) on node satellite.example.com
~~~~~~~~

Actual results: Upgrade fails.

Expected results: upgrade should be a success

Additional info:
1- By-default parameter "apache::trace_enable: Off" is commented on satellite inside file - /etc/foreman-installer/custom-hiera.yaml

2- Upgrade check does not give or hint about any such error. this error comes only running actual upgrade .