enum values cannot be added for an existing field 

error message:
message: 'error for resolved bundle "nginx75515.v1.0.6" with version "1.0.6":
      validating upgrade for CRD "nginxolm75515s.cache.example.com": v1alpha1: ^.spec.enumfield:
      enum: allowed enum values added : ["value4"]'

    4.20.0-0.nightly-2025-07-07-234740

    always

    1.create catalog
xzha@xzha1-mac OCP-75515 % cat catalog.yaml 
apiVersion: olm.operatorframework.io/v1
kind: ClusterCatalog
metadata:
  name: catalog-75515
  labels:
    example.com/support: "true"
    test-cases: ocp-75515
spec:
  priority: 1000
  source:
    type: Image
    image:
      ref: quay.io/openshifttest/nginxolm-operator-index:nginxolm75515

     2. create clusterextension extension-75515
xzha@xzha1-mac OCP-75515 % cat extension.yaml 
apiVersion: olm.operatorframework.io/v1
kind: ClusterExtension
metadata:
  name: "extension-75515"
spec:
  namespace: "ns-75515"
  serviceAccount:
    name: "test-75515"
  source:
    sourceType: "Catalog"
    catalog:
      packageName: "nginx75515"
      channel: candidate-v1.0
      version: "1.0.3"
      upgradeConstraintPolicy: "CatalogProvided"

CRD nginxolm75515s.cache.example.com
         spec:
            description: Spec defines the desired state of Nginxolm75515
            type: object
            properties:
              enumfield:
                type: string
                enum: 
                  - "value1"
                  - "value2"
                  - "value3"
            required:
              - enumfield

     3. upgrade clusterextension to 1.0.6
CRD  nginxolm75515s.cache.example.com for 1.0.6 add one enum value

          properties:
              enumfield:
                type: string
                enum:
                  - "value1"
                  - "value2"
                  - "value3"
                  - "value4"
            required:
              - enumfield 

xzha@xzha1-mac OCP-75515 % oc patch clusterextension extension-75515 -p '{"spec":{"source":{"catalog":{"version":"1.0.6","upgradeConstraintPolicy":"SelfCertified"}}}}' --type=merge
clusterextension.olm.operatorframework.io/extension-75515 patched  

- lastTransitionTime: "2025-07-08T01:51:10Z"
    message: 'error for resolved bundle "nginx75515.v1.0.6" with version "1.0.6":
      validating upgrade for CRD "nginxolm75515s.cache.example.com": v1alpha1: ^.spec.enumfield:
      enum: allowed enum values added : ["value4"]'
    observedGeneration: 2
    reason: Retrying
    status: "True"
    type: Progressing

   upgrade to 1.0.6 failed,  enum values cannot be added for an existing field

    upgrade to 1.0.6 successfully, more enum values can be added for an existing field

    https://issues.redhat.com/browse/OPECO-3201
"more enum values can be added for an existing field" should be supported