Description of problem: Hypervisor is returning duplicate guests 


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


How reproducible:


+ curl -v https://candlepin.corp.redhat.com/candlepin/consumers/cc7abe62-85aa-456c-a734-412776919f4d/guests
> GET /candlepin/consumers/cc7abe62-85aa-456c-a734-412776919f4d/guests HTTP/1.1
> Host: candlepin.corp.redhat.com
> User-Agent: curl/7.61.1
> Accept: */*
> CP-USER:candlepin_admin
> 
< HTTP/1.1 200 OK
< Server: Apache-Coyote/1.1
< x-candlepin-request-uuid: 17f48647-419a-4e73-a400-fb7cf28ad4ef
< X-Version: 2.7.3-1
< Content-Type: application/json
< Transfer-Encoding: chunked
< Date: Tue, 30 Jul 2019 18:15:15 GMT
< 
[
  {
    "id": "8a85f9926ae5e02e016b0343ae006155",
    "uuid": "887adf21-f995-4434-8434-82b3a4044ff7",
    "name": "xinfcint23v.ibge.gov.br"
  },
  {
    "id": "8a85f9926ae5e02e016b0343ae006155",
    "uuid": "887adf21-f995-4434-8434-82b3a4044ff7",
    "name": "xinfcint23v.ibge.gov.br"
  },
  {
    "id": "8a85f9926ae5e02e016b0343ae006155",
    "uuid": "887adf21-f995-4434-8434-82b3a4044ff7",
    "name": "xinfcint23v.ibge.gov.br"
  },
  {
    "id": "8a85f9926ae5e02e016b0343ae006155",
    "uuid": "887adf21-f995-4434-8434-82b3a4044ff7",
    "name": "xinfcint23v.ibge.gov.br"
  },
  {
    "id": "8a85f9926ae5e02e016b0343ae006155",
    "uuid": "887adf21-f995-4434-8434-82b3a4044ff7",
    "name": "xinfcint23v.ibge.gov.br"
  }
]


This manifests itself in RHSM when displaying the hypervisor

https://access.redhat.com/management/systems/cc7abe62-85aa-456c-a734-412776919f4d


When selecting a system that is different from the ones on guest list and then returning to hypervisor, the guests list changes