Deploy same service in same namespace across multi clusters in istio service mesh

hi, i am testing istio service mesh. i have a problem or a feature want to request some suggestion.

sanme service deployed in same name space across multi clusters should be get balanced, and use some annoations with service to control if traffice should be balanced to diffrent clusters. i hava submit a request in github, but no replies.

please refer to https://github.com/istio/istio/issues/24622