Failed to create a compute test_cnv_cr (KubeVirt) instance foo.example.com: HTTP status code 422, admission webhook "virtualmachine-validator.kubevirt.io" denied the request: Network interface name can only contain alphabetical characters, numbers, dashes or underscores (_) for POST https://api.kubevirt.example.com:6443/apis/kubevirt.io/v1alpha3/namespaces/test-project-zzz/virtualmachines error is displayed during host provisioning on Kubevirt compute resource

Description of problem:

 When creating a host on Kubevirt compute resource, select a network with a name containing / symbol, for example default/foo.
The host won't be created, and the error from the subj will appear in the logs

How reproducible:

 Always

Is this issue a regression from an earlier version:

Actual behavior:

The host is not created and the error from the subject is displayed

Expected behavior:

Host created properly

Business Impact / Additional info: