[0.30.2+] Error saving state: unsupported attribute "encrypted_value"

[seanamos]

Describe the bug
Since 0.3.2, when using resource targeting, if an octopusdeploy_variable is not part of the plan, the following error is produced:

 Error: Failed to save state
│ 
│ Error saving state: unsupported attribute "encrypted_value"
╵
╷
│ Error: Failed to persist state to backend

Steps to reproduce

# main.tf

resource "octopusdeploy_variable" "test" {
...
}

resource "terraform_data" "test" {
}

terraform apply -target 'terraform_data.test'

│ Error: Failed to save state
│ 
│ Error saving state: unsupported attribute "encrypted_value"
╵
╷
│ Error: Failed to persist state to backend

Expected behavior
Plan/apply should succeed with resource targeting in effect.

Environment and versions:

• Terraform Version: 1.9.5
• Octopus Terraform Provider Version: 0.30.7