Immutable field error during kubevirt-manager upgrade (selector mismatch)

Outcome from: !4701 (comment 2583300457)

Error:

2025/06/24 16:55:27.922283 Kustomization/kubevirt-manager state changed: ReconciliationFailed - Deployment/kubevirt-manager/kubevirt-manager dry-run failed (Invalid): Deployment.apps "kubevirt-manager" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{"app":"kubevirt-manager"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable

Problematic code :

spec:
  selector:
    matchLabels:
      app: kubevirt-manager
      kubevirt-manager.io/version: 1.5.0     << Problem due to change from 1.4.1 to 1.5.0 in immutable field

This problem is occurring during upgrade from 1.4.x to 1.5.0 and will come in each upgrade