Strict server generates invalid code if response list items are polymorphic

[donotnoot]

spec.yaml

openapi: 3.0.3

info:
  description: Example
  version: "1.0.0"
  title: Example

paths:
  /test:
    get:
      tags:
        - Tag
      summary: Summary
      operationId: op_id
      responses:
        200:
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  polymorphic_list:
                    type: array
                    description: polymorphic list
                    items:
                      anyOf:
                        - type: string
                        - type: number

config.yaml

output:
  out.gen.go
package: tmp
generate:
  models: true
  strict-server: true

  chi-server: false
  client: false
  echo-server: false
  embedded-spec: false
  gin-server: false
  gorilla-server: false

out.gen.go:

// Package tmp provides primitives to interact with the openapi HTTP API.
//
// Code generated by github.com/deepmap/oapi-codegen version v1.11.1-0.20221003111356-96482c12b2bc DO NOT EDIT.
package tmp

import (
	"context"
	"encoding/json"
	"net/http"
)

type OpIdRequestObject struct {
}

type OpIdResponseObject interface {
	VisitOpIdResponse(w http.ResponseWriter) error
}

type OpId200JSONResponse struct {
	// PolymorphicList polymorphic list
	PolymorphicList *[]OpId200JSONResponse_PolymorphicList_Item `json:"polymorphic_list,omitempty"`
}

func (response OpId200JSONResponse) VisitOpIdResponse(w http.ResponseWriter) error {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(200)

	return json.NewEncoder(w).Encode(response)
}

// StrictServerInterface represents all server handlers.
type StrictServerInterface interface {
	// Summary
	// (GET /test)
	OpId(ctx context.Context, request OpIdRequestObject) (OpIdResponseObject, error)
}

complaint from go vet:

% go vet out.gen.go
# command-line-arguments
vet: ./out.gen.go:21:21: undeclared name: OpId200JSONResponse_PolymorphicList_Item

generated with: oapi-codegen -config config.yaml spec.yaml

version:

github.com/deepmap/oapi-codegen/cmd/oapi-codegen
v1.11.1-0.20221003111356-96482c12b2bc

I expect that missing type to be generated, but it is not.