Cloudwatch log group for Lambda@Edge is not set correctly

[milpog]

Description

When the var.lambda_at_edge variable is set to true, the CloudWatch log group created by this module is named /aws/lambda/us-east-1.${var.function_name}. However, the logging configuration for the Lambda function does not align with this and instead points to the log group /aws/lambda/${var.function_name}.

• ✋ I have searched the open/closed issues and my issue is not listed.

Versions

• Module version [Required]: 7.17.0
• Terraform version: OpenTofu v1.8.5 on darwin_arm64
• Provider version(s): registry.opentofu.org/hashicorp/aws 5.81.0

Reproduction Code [Required]

terraform {
  backend "local" {}
}

terraform {
  required_providers {
    aws = {
      source = "hashicorp/aws"
    }
  }
}

provider "aws" {
  region = "us-east-1"
}

module "lambda" {
  source  = "terraform-aws-modules/lambda/aws"
  version = "7.17.0"

  lambda_at_edge = true
  publish        = true

  function_name = "example"
  handler       = "index.lambda_handler"
  runtime       = "python3.13"

  source_path = "${path.module}/index.py"
}

Steps to reproduce the behavior:

Deploy Lambda and navigate to AWS console to check the logs for created Lambda function.

Expected behavior

Lambda logging group should be set to /aws/lambda/us-east-1.example

Actual behavior

Lambda logging group is set to /aws/lambda/example, however Cloudwatch log group created by the module is named /aws/lambda/us-east-1.example

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