Reuse module with multiple providers

Terraform
1

Hi,
Something that was working fine prior 0.15. I have module that I am reusing in multiple regions/providers in aws with different VARs. How can I do this in >=0.15?

The sample module configuration working in Terraform prior 0.15 is:

provider "aws" {
  region  = "eu-west-1"
  profile = "bastion"
  assume_role {
    role_arn     = "arn:aws:iam::1234567890:role/role"
    session_name = "terraform"
  }
}

provider "aws" {
  region  = "us-east-1"
  alias   = "use1"
  profile = "bastion"
  assume_role {
    role_arn     = "arn:aws:iam::1234567890:role/role"
    session_name = "terraform"
  }
}

provider "aws" {
  region  = "eu-west-2"
  profile = "bastion"
  alias   = "euw2"
  assume_role {
    role_arn     = "arn:aws:iam::1234567890:role/role"
    session_name = "terraform"
  }
}

module "eu-db-backup-destination" {
  source              = "../modules/offsite-backup-aurora-destination"
  destination-kms-key = "arn:aws:kms:eu-west-1:1234567890:key/xxx"
  source-kms-key      = "arn:aws:kms:eu-west-1:0987654321:key/yyy"
  retention-days      = "90"
  database-id         = "eu-cluster"
  region              = var.region
  tags                = var.tags
}

module "us-db-backup-destination" {
  source              = "../modules/offsite-backup-aurora-destination"
  providers = {
    aws = aws.use1
  }
  destination-kms-key = "arn:aws:kms:us-east-1:1234567890:key/xxx"
  source-kms-key      = "arn:aws:kms:us-east-1:0987654321:key/yyy"
  retention-days      = "90"
  database-id         = "us-cluster"
  region              = var.region
  tags                = var.tags
}

module "eu2-db-backup-destination" {
  source              = "../modules/offsite-backup-aurora-destination"
  providers = {
    aws = aws.euw2
  }
  destination-kms-key = "arn:aws:kms:eu-west-2:1234567890:key/xxx"
  source-kms-key      = "arn:aws:kms:eu-west-2:0987654321:key/yyy"
  retention-days      = "90"
  database-id         = "eu2-cluster"
  region              = "eu-west-2"
  tags                = var.tags
}

For 0.15 it wants me to add all remaining providers to the each module and then it wants to create it each region. How can I do this to make it working like it was in <0.15?