gatekeeper helmrelease fails with flux version 0.15.x

The Gatekeepr code apparently has duplicate affinity tags. Deployment with flux 0.15.x fails.

[p1dev@p1dev-vm bigbang]$ flux -v
flux version 0.15.1

[p1dev@p1dev-vm bigbang]$ kubectl get helmrelease -n bigbang
NAME         READY   STATUS   AGE
gatekeeper   False   Helm uninstall failed: uninstall: Release not loaded: gatekeeper-system-gatekeeper: release: not found

[p1dev@p1dev-vm bigbang]$ kubectl describe helmrelease gatekeeper -n bigbang
Events:
  Type    Reason  Age                    From             Message
  ----    ------  ----                   ----             -------
  Normal  info    7m38s (x2 over 7m38s)  helm-controller  HelmChart 'bigbang/bigbang-gatekeeper' is not ready
  Normal  info    7m36s                  helm-controller  Helm install has started
  Normal  error   7m34s                  helm-controller  Helm install failed: error while running post render on files: map[string]interface {}(nil): yaml: unmarshal errors:
  line 117: mapping key "affinity" already defined at line 41