Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1394817
Description of problem:
When creating one new computer profile using as computer resource one libvirt connection, is not possible see the Network available in dropdown menulist, only after submit and open again we can see the network available to this computer resource / provider.

Version-Release number of selected component (if applicable):
6.2.4

How reproducible:
100%

Steps to Reproduce:
1. Create one new libvirt computer resource
2. Infrastructure - Computer Profiles - New Computer Profile - <define name> / submit - <select libvirt computer resource>
3. In Network interfaces section, it's possible to see Network type, Network and NIC type, feel free to change Network type, in Network field still as text box.
4. Click on Submit
5. Reopen the same computer profile and check again the Network field, now it's possible to select via dropdown menu list.

Actual results:
text box

Expected results:
dropdown menu list with network availables

Additional info: