Description of problem:
When I create a host in Foreman with provider = RHEV and I select some image for Image Based provisioning, this populates Virtual Machine tab. It doesn't, however, populate the Interfaces tab.

Version-Release number of selected component (if applicable):
Sat 6.4 snap 4

How reproducible:
Deterministic

Steps to Reproduce:
1. Have a Sat 6.4 with some RHEV added as CR. Have some Template in this RHEV. Have this template assigned to some Image in that CR.
2. Hosts -> Create Hosts
3. Fill necessary fields to be able to select Image Based provisioning (at least you need to select the RHEV as a Provider and in OS tab, select arch and OS)
4. Select Image Based in OS tab

Actual results:
Virtual Machine tab is populated, but Interfaces tab is not

Expected results:
Both tabs should be populated