[Bug] Error: Provider produced inconsistent result after apply in elasticstack_kibana_action_connector

[bplies-ATX]

Describe the bug
Upgraded provider version from 0.11.17 to 0.12.1. A previously created set of elasticstack_kibana_action_connector resources:

# Provide each Kibana Space with an Incident.io connector so that maintainers can create alerts that get sent to incident.io
resource "elasticstack_kibana_action_connector" "incident_io_connector" {
  for_each          = { for space in local.team_kibana_spaces : space.space_id => space }
  name              = "Incident.io Integration"
  connector_type_id = ".webhook"
  config = jsonencode({
    hasAuth = false
    headers = {
        "Authorization": "Bearer ${local.incident_io_connector_auth_token}",
        "Content-Type": "application/json"
    }
    url     = local.incident_io_connector_endpoint
  })
  secrets   = jsonencode({}) # Supposed to be optional, but this should make the request happy
  space_id  = each.value.space_id
}

A terraform plan indicated that they'd be updated in-place. For example:

  # elasticstack_kibana_action_connector.incident_io_connector["devex"] will be updated in-place
~ resource "elasticstack_kibana_action_connector" "incident_io_connector" {
      ~ config             = (sensitive value)
        id                 = "devex/680c5301-df4d-42b2-af82-99cb2d17541e"
      ~ is_deprecated      = false -> (known after apply)
      ~ is_missing_secrets = false -> (known after apply)
      ~ is_preconfigured   = false -> (known after apply)
        name               = "Incident.io Integration"
        # (4 unchanged attributes hidden)
    }

A terraform apply fails:

Error: Provider produced inconsistent result after apply

When applying changes to
elasticstack_kibana_action_connector.incident_io_connector["devex"], provider
"provider[\"registry.terraform.io/elastic/elasticstack\"]" produced an
unexpected new value: .config: inconsistent values for sensitive attribute.

This is a bug in the provider, which should be reported in the provider's own
issue tracker.

Versions (please complete the following information):

• OS: Linux
• Terraform Version 1.8.1
• Provider version 0.12.1
• Elasticsearch Version 8.17.1