Problem applying module for the first time, datasource uses bucket which is not existing.

[maartenvanderhoef]

Terraform v0.11.10

• provider.aws: version = "~> 1.42"

When applying the following:

module "cdn" {
  source           = "git::https://github.com/cloudposse/terraform-aws-cloudfront-s3-cdn.git?ref=master"
  namespace        = "eg"
  stage            = "prod"
  name             = "app"
  aliases          = ["xxx]
  parent_zone_name = "xxxxx"
}

I am getting this error:

Error: Error refreshing state: 1 error(s) occurred:

* module.cdn.data.aws_s3_bucket.selected: 1 error(s) occurred:

* module.cdn.data.aws_s3_bucket.selected: data.aws_s3_bucket.selected: Failed getting S3 bucket: NotFound: Not Found
	status code: 404, request id: ED5F22C4A1F1270A, host id: lMLXsPMkwT9+QJ/80X2OeL92PlFeC33QjNdCjNYjez3cP1Km/7A6nBEFeHl59dmdNTMuKDTJQTE= Bucket: "eg-prod-app-origin"

At https://github.com/cloudposse/terraform-aws-cloudfront-s3-cdn/blob/f6420b3e81a4c4c2480d6ef429c8651983a57061/main.tf#L100 aws_s3_bucket.origin.*.bucket is used to get the bucket_name, however this will also be evaluated when aws_s3_bucket.origin has not been created yet. That will cause "aws_s3_bucket.selected" to use a bucketname which has not been created yet.