question

All tags are missing in the JSON result when listing resources while using the tag argument.

This is the default listing that I get when running without "tag" attribute:

 # az resource list
 {
     "id": xxxx,
     "identity": null,
     "kind": null,
     "location": xxxx,
     "managedBy": null,
     "name": xxxx,
     "plan": null,
     "properties": null,
     "resourceGroup": xxxx,
     "sku": null,
     "tags": {
       "company": "Foo",
       "owner": "kubernetes",
       "type": "aks-slb-managed-outbound-ip"
     },
     "type": "Microsoft.Network/publicIPAddresses"
   }

When running with --tag attribute I get empty tags array:

 # az resource list --tag company
   {
     "id": xxxx,
     "identity": null,
     "kind": null,
     "location": xxxx,
     "managedBy": null,
     "name": xxxx,
     "plan": null,
     "properties": null,
     "resourceGroup": xxxx,
     "sku": null,
     "tags": null,
     "type": "Microsoft.Network/publicIPAddresses"
   }

Is this the expected behaviour? I would really like to get the complete result.