Plugin crash when creating datadog_synthetics_private_location

[Dcooley1350]

Terraform Version

Terraform v1.2.3 on darwin_arm64
provider registry.terraform.io/datadog/datadog v3.12.0

Affected Resource(s)

• datadog_synthetics_private_location

Terraform Configuration Files

resource "datadog_synthetics_private_location" "synthetics_private_location" {
  name        = "${var.env}"
  description = "${var.env} Datadog synthetics private location"

  metadata {
    restricted_roles = []
  }
  
  tags        = [
    "clusterName:${var.cluster_name}",
    "project:${var.project}", 
    "env:${var.env}",
  ]
}

Debug Output

Debug logs gist

Panic Output

panic gist

Expected Behavior

The resource should either:

1. Show no changes on later plans/applies when the metadata { restricted_roles = [] } block is omitted during creation of the resources.
2. Not cause the plugin to crash when the block metadata { restricted_roles = [] } is included in the resource during initial creation of the resources.

Actual Behavior

When metadata { restricted_roles = [] } is included in the resource during the initial apply to create the resources, the plugin crashes. If this block is not included in the resource, the resource shows a necessary change on every sequential apply to remove this block from the resource

Steps to Reproduce

Reproduce the plugin crash:

• Include metadata { restricted_roles = [] } in the resource and run terraform apply to create the resource.

Reproduce the "changes are always necessary" problem:

• Omit metadata { restricted_roles = [] } from the resource and run terraform apply to create the resource. After the resource is created, run terraform apply again. The plan will show that the resource must be updated in place with:

      - metadata {
          - restricted_roles = [] -> null
        }