From https://github.com/openshift/hive/issues/2839

See discussion in https://github.com/openshift/hive/pull/2840

Repro:

• I have multiple versions of a CRD
• I have a syncset with resources including an instance at one version
• I edit the syncset to change that instance to a different version

Expected: CR on the spoke is deleted and recreated immediately.
Actual: CR on the spoke is deleted, but not recreated until the next reconcile is triggered.

I experimented with this by duplicating the schema for clusterimageset, making the second copy's spec.versions[].name: v2 and changing v1's storage: false. (The result is that etcd will always get v2.)

Then I used a syncset like:

apiVersion: hive.openshift.io/v1
kind: SyncSet
metadata:
  name: myss
spec:
  clusterDeploymentRefs:
  - name: efried
  resourceApplyMode: Sync
  resources:
  - apiVersion: hive.openshift.io/v1
    kind: ClusterImageSet
    metadata:
      name: myimgset
    spec:
      releaseImage: foo

and twiddled the SyncSet's spec.resources[].apiVersion between hive.openshift.io/v1 and hive.openshift.io/v2.