tls.tf missing resource instance key

[jkzlau]

Hi there,

In attempt to perform terraform apply/plan, an error message indicating that a missing reference is in the code, particular as follow:

Error: Missing resource instance key

  on tls.tf line 124, in resource "google_storage_bucket_object" "vault-private-key":
 124:   content = data.google_kms_secret_ciphertext.vault-tls-key-encrypted.ciphertext

Because data.google_kms_secret_ciphertext.vault-tls-key-encrypted has "count"
set, its attributes must be accessed on specific instances.

For example, to correlate with indices of a referring resource, use:
    data.google_kms_secret_ciphertext.vault-tls-key-encrypted[count.index]

The line is referencing the ciphertext call that doesn't look to have been assigned

# Encrypt server key with GCP KMS
data "google_kms_secret_ciphertext" "vault-tls-key-encrypted" {
  count      = local.manage_tls_count
  crypto_key = google_kms_crypto_key.vault-init.self_link
  plaintext  = tls_private_key.vault-server[0].private_key_pem
}

resource "google_storage_bucket_object" "vault-private-key" {
  count = local.manage_tls_count

  name    = var.vault_tls_key_filename
  content = data.google_kms_secret_ciphertext.vault-tls-key-encrypted.ciphertext
  bucket  = local.vault_tls_bucket

  depends_on = [google_storage_bucket.vault]

  lifecycle {
    ignore_changes = [
      content,
    ]
  }
}

As this looks to be a 0.12+ requirement, is there anyway around this?
Thanks for the work!