Description of problem:
When I click at link with number of hosts on a capsule detail page, it fills search box with invalid search pattern (incorrectly escaped url?).


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 a Sat and capsule
2. Infrastructure -> Capsules -> <capsule> -> click to link next to
   "Hosts managed" (I had there 0, but I assume that is not important)


Actual results:
You are taken to:

  https://<fqdn>/hosts?search=smart_proxy%2B%3D%2B%22<capsule>%22

and in the search box there is:

  smart_proxy+=+"<capsule>"


Expected results:
There shouldn't be these "+" in search box:

  smart_proxy = "<capsule>"