Non-Redirected Service Split Uses a Gateway unnecessarily

[mkeeler]

Using the terraform code here: https://github.com/mkeeler/consul-docker-test/tree/master/mesh-gateways-l7

It sets up the following configuration entries

Kind = "proxy-defaults"
Name = "global"
Config {
  local_connect_timeout_ms = 1000
  handshake_timeout_ms = 10000
}
MeshGateway {
  Mode = "local"
}

Kind = "service-defaults"
Name = "api"
protocol = "http"

Kind = "service-defaults"
Name = "api-v2"
protocol = "http"

Kind = "service-defaults"
Name = "web"
protocol = "http"

Kind = "service-resolver"
Name = "api"
Subsets {
  v1 {
    Filter = "Service.Meta.version == 1"
  }
  v2 {
    Filter = "Service.Meta.version == 2"
  }
}

Kind = "service-resolver"
Name = "api-v2"
Redirect {
  Service = "api"
  ServiceSubset = "v2"
  Datacenter = "secondary"
}
Subsets {
  v1 {
    Filter = "Service.Meta.version == 1"
  }
  v2 {
    Filter = "Service.Meta.version == 2"
  }
}

Kind = "service-splitter"
Name = "api"
Splits = [
  {
    Weight = 90
    ServiceSubset = "v1"
  },
  {
    Weight = 10
    Service = "api-v2"
  },
]

Everything technically works but the both the v1 subset split and api-v2 service split end up being routed towards the gateway involved.

It would be desirable for the v1 service subset to be sent directly to the instance in the primary dc instead of going through the gateway.