Calico network policies being skipped in backups

[colinliddlemyob]

What steps did you take and what happened:
Backing up and restoring a cluster with calico network policies

What did you expect to happen:
Both k8s network policies and calico network policies should be backed up and restored

The output of the following commands will help us better understand what's going on:

Creating a backup and just specifying the calico network policies will create a backup (but just with those resources)
velero create backup --include-resources networkpolicies.crd.projectcalico.org ...

Creating a backup without specifying resources (eg all resources) will skip over the calico network policies because it thinks it has already backed them up, but was actually just the k8s native network policies
velero create backup ...
time="2021-01-06T23:32:50Z" level=info msg="Skipping resource because it cohabitates and we've already processed it" backup=kube-system/mf-backup-9 cohabitatingResource1=networkpolicies.extensions cohabitatingResource2=networkpolicies. networking.k8s.io group=crd.projectcalico.org/v1 logSource="pkg/backup/resource_backupper.go:148" resource=networkpolicies

Anything else you would like to add:

If I try --include-resources *,networkpolicies.crd.projectcalico.org I get the error Validation errors: Invalid included/excluded resource lists: includes list must either contain '*' only, or a non-empty list of items

Environment:

• Velero version (use velero version): 1.3.1 (have tried 1.5.2 as well with same issues)
• Velero features (use velero client config get features): None
• Kubernetes version (use kubectl version): 1.17.12
• Kubernetes installer & version: Self managed
• Cloud provider or hardware configuration: AWS EC2
• OS (e.g. from /etc/os-release): Amazon linux 2

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[carlisia]

This discussion has been moved to an issue: #3346.