istio: istioctl installation can't set externalTrafficPolicy

Bug description

istioctl can’t set Ingress Gateway’s externalTrafficPolicy

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Steps to reproduce the bug

Failed to generate and apply manifests, error: failed to generate manifest: input file failed validation with the following errors: unknown field “externalTrafficPolicy” in v1alpha1.IngressGatewayConfig

Setting spec.values.gateways.istio-ingressgateway of IstioControlPlane to externalTrafficPolicy: Local creates the following error:

Failed to generate and apply manifests, error: failed to generate manifest: input file failed validation with the following errors: unknown field "externalTrafficPolicy" in v1alpha1.IngressGatewayConfig

Setting spec.gateways.components.ingressGateway.k8s.service.externalTrafficPolicy passes the validation but does not create an effect on generated manifest.

Version (include the output of istioctl version --remote and kubectl version and helm version if you used Helm)

Istio 1.4.2

How was Istio installed?

istioctl