same fields owned by two managers???.json

{
  "apiVersion": "testing.openshift.io/v1",
  "kind": "SSAWithSet",
  "metadata": {
    "creationTimestamp": "2024-04-24T20:58:42Z",
    "generation": 1,
    "managedFields": [
      {
        "apiVersion": "testing.openshift.io/v1",
        "fieldsType": "FieldsV1",
        "fieldsV1": {
          "f:spec": {
            "f:setList": {
              "v:\"first\"": {},
              "v:\"second\"": {}
            }
          }
        },
        "manager": "new-owner",
        "operation": "Apply"
      },
      {
        "apiVersion": "testing.openshift.io/v1",
        "fieldsType": "FieldsV1",
        "fieldsV1": {
          "f:spec": {
            "f:setList": {
              "v:\"first\"": {},
              "v:\"second\"": {}
            },
            "f:unrelatedField": {}
          }
        },
        "manager": "creator",
        "operation": "Apply",
        "time": "2024-04-24T20:58:42Z"
      }
    ],
    "name": "foo",
    "resourceVersion": "60607",
    "uid": "6e29c81c-9711-4481-ad01-4d07a864c19f"
  },
  "spec": {
    "setList": [
      "first",
      "second"
    ],
    "unrelatedField": "keep-original-owner"
  }
}

z_crd.yaml

apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  name: ssawithsets.testing.openshift.io
spec:
  group: testing.openshift.io
  names:
    kind: SSAWithSet
    listKind: ISSAWithSetList
    plural: ssawithsets
    singular: ssawithset
  scope: Cluster
  versions:
  - name: v1
    schema:
      openAPIV3Schema:
        properties:
          apiVersion:
            type: string
          kind:
            type: string
          metadata:
            type: object
          spec:
            properties:
              unrelatedField:
                type: string
              setList:
                items:
                  maxLength: 43
                  minLength: 1
                  type: string
                maxItems: 32
                type: array
                x-kubernetes-list-type: set
            type: object
        required:
        - spec
        type: object
    served: true
    storage: true
    subresources:
      status: {}