Importing oci_core_route_table resources does not import attributes in rules

[nepeat]

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Terraform Version and Provider Version

OpenTofu v1.8.2
on darwin_arm64
+ provider registry.opentofu.org/hashicorp/oci v6.13.0

Affected Resource(s)

• oci_core_route_table

Terraform Configuration Files

resource "oci_core_route_table" "minimal" {
    vcn_id = var.vcn_ocid
    compartment_id = "ocid1.compartment.oc1..id"

    route_rules {
        network_entity_id = "ocid1.servicegateway.oc1.region.id"
        description = "SGW"

        destination = "all-ord-services-in-oracle-services-network"
        destination_type = "SERVICE_CIDR_BLOCK"
        route_type = "STATIC"
    }
}

Debug Output

Debug output not provider due to confidentiality of output.

Panic Output

N/A

Expected Behavior

No differences between imported resource and the Terraform file.

This is expected because the output from retrieving the route table directly contains the route-type and cidr-block. oci network route-table get --rt-id ocid1.routetable.oc1.us-chicago-1.id | jq '.data."route-rules"'

1. cidr-block should be imported as an explicit null value in the state.
2. route-type should be imported into the state as it has a value.

[
  {
    "cidr-block": null,
    "description": null,
    "destination": "all-ord-services-in-oracle-services-network",
    "destination-type": "SERVICE_CIDR_BLOCK",
    "network-entity-id": "ocid1.servicegateway.oc1.us-chicago-1.id",
    "route-type": "STATIC"
  }
]

Actual Behavior

Terraform attempts to recreate the resource due to missing route_type and cidr_block attribute.

Displaying the state shows that the route-type attribute was not imported.

terraform state show oci_core_route_table.minimal

resource "oci_core_route_table" "minimal" {
  // other output truncated

  route_rules {
      destination       = "all-ord-services-in-oracle-services-network"
      destination_type  = "SERVICE_CIDR_BLOCK"
      network_entity_id = "ocid1.servicegateway.oc1.us-chicago-1.id"
  }
}

1. route-type did not get imported.
2. cidr-type did not import as an explicit null.

Steps to Reproduce

1. terraform import oci_core_route_table.minimal ocid ocid1.routetable.oc1.us-chicago-1.id
2. terraform plan

Important Factoids

References

#2070 documents similar behaviour where RT resources get recreated due to changes in the cidr_block. That issue does not cover the use case of importing RT resources.

[nepeat]

Looked more into the code, made a code change and was able to fix one part of my issue in #2225