Description of problem:
Filtering content hosts by simply entering hostname into search bar does not return (spinner keeps spinning)


Version-Release number of selected component (if applicable):
satellite-6.2.0-8.2.beta.el7sat.noarch


How reproducible:
always


Steps to Reproduce:
1. Have Satellite with about 6000+ content hosts registered
2. Go to Hosts -> Content Hosts
3. Clcik into the search bar, enter hostname of one of your systems (in my case I have entered "localhost" as one my system is registered as "localhost.localdomain")  and click [Search]


Actual results:
Spinner keeps spinning, after about 3 minutes, there is a tracenack in the production.log:

  ActiveRecord::RecordInvalid: Validation failed: Fact name has already been taken


Expected results:
Should show me the system or tell me that mine search query is invalid