Description of problem:

EgressFirewalls still retain information about each deleted machine. On large clusters this build up overtime and end up filling etcd / breaking the api server etc.

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

reproducing with 4.19.10

How reproducible:

trivial:

Steps to Reproduce:

1. create an EgressFirewall

2. delete some machines

3. oc get egressfirewall default -o yaml --show-managed-fields 

Actual results:

managedFields still contains fields

- apiVersion: k8s.ovn.org/v1
  fieldsType: FieldsV1
  fieldsV1:
    f:status: {}
  manager: worker-7j7fv
  operation: Apply
  subresource: status
  time: "2025-09-25T21:57:58Z" 

Expected results:

no leaked managed field

Additional info:

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Affected Platforms:

OpenShift 4.16, 4.19

customer issue