[BUG] object keys must be unique

[davops]

Describe the bug
When regula is run over a Terraform configuration with two buckets referencing a regex and data resource, it fails with:
FATAL rules/tf/aws/cloudtrail/s3_access_logging.rego:42: eval_conflict_error: object keys must be unique

How you're running Regula

• I'm using Regula v3.2.1 as a CLI tool and my Terraform source code as an input:

regula run

Operating System
This error occurs on multiple operating systems.

IaC Configuration
Terraform Example:

resource "aws_s3_bucket" "first" {
  bucket = local.first_bucket_name
}

resource "aws_s3_bucket" "second" {
  bucket = local.second_bucket_name
}

locals {
  region             = data.aws_region.current.name
  abbr_region        = join("", regex("(\\w\\w)-(\\w).*-(\\d)", local.region)) # Example: us-east-2 -> use2
  first_bucket_name  = "bucket1-${local.abbr_region}"
  second_bucket_name = "bucket2-${local.abbr_region}"
}

data "aws_region" "current" {}

Additional context
It's only once the second bucket is added that this error message appears.