ibm_is_subnets output duplicates

[ChapChap]

Is this a loop bug ? Got duplactaes subnets

t$ terraform apply
var.ibmcloud_api_key
  Enter a value: XXXXXXXXXXXXXX

data.ibm_is_subnets.subnets: Refreshing state...

Apply complete! Resources: 0 added, 0 changed, 0 destroyed.

Outputs:

count = 6
tst = [
  {
    "available_ipv4_address_count" = "57"
    "crn" = "CRN#3"
    "id" = "ID#3"
    "ipv4_cidr_block" = "RANGE#3"
    "ipv6_cidr_block" = ""
    "name" = "NAME#3"
    "network_acl" = "NETACLID"
    "public_gateway" = ""
    "resource_group" = ""
    "status" = "available"
    "total_ipv4_address_count" = "64"
    "vpc" = "VPCID"
    "zone" = "ZONE#3"
  },
  {
    "available_ipv4_address_count" = "57"
    "crn" = "CRN#3"
    "id" = "ID#3"
    "ipv4_cidr_block" = "RANGE#3"
    "ipv6_cidr_block" = ""
    "name" = "NAME#3"
    "network_acl" = "NETACLID"
    "public_gateway" = ""
    "resource_group" = ""
    "status" = "available"
    "total_ipv4_address_count" = "64"
    "vpc" = "VPCID"
    "zone" = "ZONE#3"
  },
  {
    "available_ipv4_address_count" = "54"
    "crn" = "CRN#2"
    "id" = "ID#2"
    "ipv4_cidr_block" = "RANGE#2"
    "ipv6_cidr_block" = ""
    "name" = "NAME#2"
    "network_acl" = "NETACLID"
    "public_gateway" = ""
    "resource_group" = ""
    "status" = "available"
    "total_ipv4_address_count" = "64"
    "vpc" = "VPCID"
    "zone" = "ZONE#2"
  },
  {
    "available_ipv4_address_count" = "54"
    "crn" = "CRN#2"
    "id" = "ID#2"
    "ipv4_cidr_block" = "RANGE#2"
    "ipv6_cidr_block" = ""
    "name" = "NAME#2"
    "network_acl" = "NETACLID"
    "public_gateway" = ""
    "resource_group" = ""
    "status" = "available"
    "total_ipv4_address_count" = "64"
    "vpc" = "VPCID"
    "zone" = "ZONE#2"
  },
  {
    "available_ipv4_address_count" = "53"
    "crn" = "CRN#1"
    "id" = "ID#1"
    "ipv4_cidr_block" = "RANGE#1"
    "ipv6_cidr_block" = ""
    "name" = "NAME#1"
    "network_acl" = "NETACLID"
    "public_gateway" = ""
    "resource_group" = ""
    "status" = "available"
    "total_ipv4_address_count" = "64"
    "vpc" = "VPCID"
    "zone" = "ZONE#1"
  },
  {
    "available_ipv4_address_count" = "53"
    "crn" = "CRN#1"
    "id" = "ID#1"
    "ipv4_cidr_block" = "RANGE#1"
    "ipv6_cidr_block" = ""
    "name" = "NAME#1"
    "network_acl" = "NETACLID"
    "public_gateway" = ""
    "resource_group" = ""
    "status" = "available"
    "total_ipv4_address_count" = "64"
    "vpc" = "VPCID"
    "zone" = "ZONE#1"
  },
]
$ cat test.tf
data "ibm_is_subnets" "subnets" {}

output "tst" {
  value = data.ibm_is_subnets.subnets.subnets
}

output "count" {
  value = length(data.ibm_is_subnets.subnets.subnets)
}
$ ibmcloud is subnets
Listing subnets for generation 1 compute in region eu-de under account BP2I DEV PaaS OrgV2 VPC Gen1 as user MY_EMAIL...
ID     Name     Status      Subnet    CIDR        Addresses  ACL     Public Gateway   VPC             Zone
ID#1   NAME#1   available   RANGE#1   53/64       NETACLID   -       VPNNAME   ZONE#1
ID#2   NAME#2   available   RANGE#2   54/64       NETACLID   -       VPNNAME   ZONE#2
ID#3   NAME#3   available   RANGE#3   57/64       NETACLID   -       VPNNAME   ZONE#3

[ChapChap]

For Information : distinctcount = 3