Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1848902

Description of problem:
When adding a new CR of type RHEV, upon selecting a datacenter that is NOT the first in the list, the following error occurs:

ERF42-0258 [Foreman::Exception]: <uuid> is not valid, enter id or name

Log attached but doens't contain any traceback.

Version-Release number of selected component (if applicable):
Sat 6.8 snap 5.0

How reproducible:
Deterministic

Steps to Reproduce:
1. Have a Satellite and RHEV instance
2. Infrastructure -> Compute Resources -> Create
3. Fill in details
4. Load Datacenters
5. Select non-default datacenter

Actual results:
Error, list of datacenters deleted

Expected results:
Successfully verified connection, CR can be added