Description of problem:

Using the new web UI and provisioned a host, it's not possible read the  Discovery Red Hat kexec template from Host Details.

How reproducible:

After provisioned a host go to :
 - Hosts -> $host_name -> Details -> Provisioning templates -> click on Discovery Red Hat kexec

Is this issue a regression from an earlier version:

Issue showed also on Sat 6.15 - 6.16 

Actual behavior:

See attached image 

Expected behavior:
I expect the same behavior when try to read another Provisioning Templates , so without any message issue.

Business Impact / Additional info: