Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1662164

Description of problem:
Compute Resource Libvirt show wrong Display Type in Edit Page.

How reproducible:
Always

Steps to Reproduce:
1. Goto: Infrastructure > Compute resources and click create compute resource
2. Provide a name, select Libvirt from provider list, type a valid libvirt url
3. In Display Type selector choose : SPICE
4. Click Submit button to save the compute resource (ensure the compute resource saved and listed in compute resources table)
5. in Infrastructure > Compute resources push the edit button of the created above compute resource
6. The compute resource edit page is opened
7. read the Display Type

Actual results:
VNC

Expected results:
SPICE

Additional info:
If we try to change the value in edit page to SPICE and save, returning back to edit page we will see that it is VNC again.

But in compute resource Details page (as per screenshot 2) we can read Display Type: spice