[BUG]: Applying many github_repository_file resources results in

[Woody1193]

Expected Behavior

I'm using this provider as a way to setup templated repositories for API services. As such, each Terraform apply attempts to commit a large number of files to a branch. When I apply this for a folder containing ~50 files, I expect all of them to be committed to the same branch and a PR to be created on that branch afterward.

Actual Behavior

I get the following error for a number of the files:

Error: POST https://api.github.com/repos/ElectroRoute-Japan/service-valuation/git/refs: 422 Reference already exists []

Re-running the terraform apply always results in a success so I know it's not an issue with the files themselves. It appears that I'm thrashing the GitHub API but I don't see an alternative here.

Terraform Version

Terraform v1.9.5
on linux_amd64

• provider registry.terraform.io/integrations/github v6.3.1

Affected Resource(s)

• github_repository_file

Terraform Configuration Files

resource "github_repository_file" "this" {
  for_each = local.src_files

  repository                      = var.repository
  file                            = replace(each.key, "service/", local.service_path)
  content                         = each.value
  branch                          = var.branch
  commit_message                  = "Created ${replace(each.key, "service/", local.service_path)}"
  autocreate_branch               = true
  autocreate_branch_source_branch = "main"
  overwrite_on_create             = false
}

resource "github_repository_pull_request" "this" {
  base_repository       = var.repository
  base_ref              = "main"
  head_ref              = var.branch
  title                 = "${local.proper_name} Service - Infrastructure"
  body                  = "This PR includes the standard API service infrastructure, customized for the ${local.proper_name} service. This was generated by Terraform."
  maintainer_can_modify = true
  depends_on            = [github_repository_file.this]
}

Steps to Reproduce

terraform init
terraform apply

Debug Output

No response

Panic Output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct