Description of problem:
Using content_views method on a host object in report templates leads to an error, e.g. this code:

<%- load_hosts.each_record do |h| -%>
<%- h.content_views.each do |cv| -%>
<%- report_row 'host': h.name, 'cv': cv.version(h.lifecycle_environments) -%>
<%- end -%>
<%- end -%>
<%= report_render -%>

... leads to this error:
There was an error rendering the template: undefined method '#content_views' for Host::Managed::Jail (Host::Managed)

Version-Release number of selected component (if applicable):
Reproduced on 6.15 and stream, probably regression from 6.14.

How reproducible:
Deterministic

Steps to Reproduce:
0. Have some host on the Satellite
1. Create a report template containing the above code
2. Preview the template or render it

Actual results:
Error message as above

Expected results:
Template rendered correctly, the method should contain content view list

Additional info:
Probably caused by introducing multiple content views