Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1199604

Description of problem:

When testing bug #1183196, I inadvertently tried creating org, associating it with a subnet that did not exist. When this occurs, user gets an error message that seems to have nothing to do with the subnet.

Version-Release number of selected component (if applicable):
Satellite-6.1.0-RHEL-7-20150303.0

How reproducible:

Steps to Reproduce:
1. Create capsules/smart proxiess; furthermore, create only one subnet. Or create zero, and modify hammer command below accordingly.
2. Attempt to create an org:
hammer organization create --description "eeee" --name "eeee" --smart-proxy-ids=2 --domain-ids 1 --subnet-ids 1,2
3. View results

Actual results:
[root@rhsm-qe-2 ~]# hammer organization create --description "eeee" --name "eeee" --smart-proxy-ids=2 --domain-ids 1 --subnet-ids 1,2
[Foreman] Username: admin
[Foreman] Password for admin:
Could not create the organization:
Resource organization not found by id ''

Expected results:

An error message that makes more sense -- "No subnet found for id '2'" or whatever

Additional info: