[Bug]: Error deleting Vlan

[nebb00]

Terraform Version

v1.12.1

Equinix Provider Version

3.9.0

Effected Terraform Resources

equinix_metal_vlan
equinix_metal_port

Expected Behavior

When removing a equinix_metal_vlan together with its mapping to assigned equinix_metal_port ports.

module.metal[0].equinix_metal_vlan.vlans["2401"]: Destroying... [id=da651415-c06c-4924-843e-dae574f59f0b]
╷
│ Error: Error deleting Vlan
│ 
│ API Error HTTP 422 Cannot delete Virtual Network when port is assigned
╵

Actual Behavior

If I first remove all the port mappings, then rerun to remove the VLAN. It works without issue. Example;

# module.metal[0].equinix_metal_port.nic["sl6-tst-res-10c.tst-eu.equinixms.com.eth3"] will be updated in-place
  ~ resource "equinix_metal_port" "nic" {
        id                = "2fe46e3b-8cfd-4672-83ae-004a30473b79"
        name              = "eth3"
      ~ vlan_ids          = [
          - "da651415-c06c-4924-843e-dae574f59f0b",
            # (21 unchanged elements hidden)
        ]
        # (10 unchanged attributes hidden)
    }

Apply complete! Resources: 0 added, 17 changed, 0 destroyed.

then

  # module.metal[0].equinix_metal_vlan.vlans["2401"] will be destroyed
  # (because key ["2401"] is not in for_each map)
  - resource "equinix_metal_vlan" "vlans" {
      - description = "SL6-TST-RES-ETEP-2401" -> null
      - id          = "da651415-c06c-4924-843e-dae574f59f0b" -> null
      - metro       = "AM" -> null
      - project_id  = "196e9b5e-1265-436d-9fc5-c71e71a238b4" -> null
      - vxlan       = 2401 -> null
        # (1 unchanged attribute hidden)
    }

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

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module.metal[0].equinix_metal_vlan.vlans["2401"]: Destroying... [id=da651415-c06c-4924-843e-dae574f59f0b]
module.metal[0].equinix_metal_vlan.vlans["2401"]: Destruction complete after 1s

Steps to Reproduce

Try removing a VLAN and its port mappings at the same time.

Looks like its trying to destroy the VLAN first, before its removed from the port mappings