[BUG]: github_repository_environment - no terraform diff when resetting deployment branch policies via GitHub UI

[scott-doyland-burrows]

Expected Behavior

I set my code as follows and apply - this works.

resource "github_repository_environment" "example" {
  environment  = "example"
  repository   = "test"

  deployment_branch_policy {
    protected_branches     = true
    custom_branch_policies = false
  }
}

If I update the deployment branch policy in GitHub UI to no restriction, then re-apply I expect terraform to show a diff and reset the deployment branch policy to that of the terraform code.

Actual Behavior

Terraform does not reset the deployment branch policy.

Instead it reports no diff.

The statefile still shows the deployment branch policy as "protected_branches": true

The same scenario occurs with the custom_branch_policies

Looks like there is various bad logic in this resource with regards to the deployment branch policies.

Terraform Version

Terraform v1.6.0
on linux_amd64

• provider registry.terraform.io/integrations/github v5.39.0

Affected Resource(s)

github_repository_environment

Terraform Configuration Files

resource "github_repository_environment" "example" {
  environment  = "example"
  repository   = "test"

  deployment_branch_policy {
    protected_branches     = true
    custom_branch_policies = false
  }
}

Steps to Reproduce

terraform apply

Reset policy as shown in GitHub UI:

terraform apply and there will be no diff shown.
State file still shows "protected_branches": true

Debug Output

No response

Panic Output

No response

Code of Conduct

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