When using “module”, local-exec commands written in “removed block” are not executed

[bbq-all-stars]

Terraform Version

Terraform v1.9.4
on darwin_arm64
+ provider registry.terraform.io/hashicorp/null v3.2.2

Terraform Configuration Files

This is main.tf file.

terraform {
  backend "local" {
  }
}

removed {
  from = module.null.null_resource.main
  provisioner "local-exec" {
    when    = destroy
    command = "echo 'test========================================='"
  }
}

This is ./module/main.tf file

resource "null_resource" "main" {}

The following main.tf is applied in advance.

terraform {
  backend "local" {
  }
}

module "null" {
  source = "./module"
}

Debug Output

https://gist.github.com/bbq-all-stars/71f38ff5ec2b75e9cf193ae754836aad

Expected Behavior

The local-exec command for removed block is executed.

Actual Behavior

It appears that the local-exec command is not being executed, as shown below.

 % terraform apply
module.null.null_resource.main: Refreshing state... [id=47603039451433078]

Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following
symbols:
  - destroy

Terraform will perform the following actions:

  # module.null.null_resource.main will be destroyed
  # (because null_resource.main is not in configuration)
  - resource "null_resource" "main" {
      - id = "47603039451433078" -> null
    }

Plan: 0 to add, 0 to change, 1 to destroy.

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes

module.null.null_resource.main: Destroying... [id=47603039451433078]
module.null.null_resource.main: Destruction complete after 0s

Apply complete! Resources: 0 added, 0 changed, 1 destroyed.

Steps to Reproduce

1. Create a file named ./module/main.tf as follows.

   resource "null_resource" "main" {}

2. Create a file named main.tf as follows.

   terraform {
     backend "local" {
     }
   }
   
   module "null" {
     source = "./module"
   }

3. Exec terraform init and terraform apply
4. Fix main.tf file like this.

   terraform {
     backend "local" {
     }
   }
   
   removed {
     from = module.null.null_resource.main
     provisioner "local-exec" {
       when    = destroy
       command = "echo 'test========================================='"
     }
   }

5. Exec terraform apply again.
6. Make sure that null_resource removed and the execution result of the local-exec command is not output.

Additional Context

If module is not used, the results of the execution of the local-exec command are output.
I followed these steps to confirm.

1. Create a file main.tf

   terraform {
     backend "local" {
     }
   }
   
   resource "null_resource" "main" {}

2. Exec terraform apply
3. Fix main.tf file like this.

   terraform {
     backend "local" {
     }
   }
   
   removed {
     from = null_resource.main
     provisioner "local-exec" {
       when    = destroy
       command = "echo 'test========================================='"
     }
   }

4. The results of local-exec execution are output as follows.

    % terraform apply
   null_resource.main: Refreshing state... [id=922260470866626639]
   
   Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with the following
   symbols:
     - destroy
   
   Terraform will perform the following actions:
   
     # null_resource.main will be destroyed
     # (because null_resource.main is not in configuration)
     - resource "null_resource" "main" {
         - id = "922260470866626639" -> null
       }
   
   Plan: 0 to add, 0 to change, 1 to destroy.
   
   Do you want to perform these actions?
     Terraform will perform the actions described above.
     Only 'yes' will be accepted to approve.
   
     Enter a value: yes
   
   null_resource.main: Destroying... [id=922260470866626639]
   null_resource.main: Provisioning with 'local-exec'...
   null_resource.main (local-exec): Executing: ["/bin/sh" "-c" "echo 'test========================================='"]
   null_resource.main (local-exec): test=========================================
   null_resource.main: Destruction complete after 0s
   
   Apply complete! Resources: 0 added, 0 changed, 1 destroyed.
   

References

No response

[crw]

Thanks for this report!

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