copyWith: false is ignored by deep copy

[nikitadol]

Describe the bug

error: Undefined class '$TestEnumCopyWith'. (undefined_class at [bug] lib/freezed_bug.freezed.dart:32)
error: Undefined class '$TestEnumCopyWith'. (undefined_class at [bug] lib/freezed_bug.freezed.dart:56)
error: The method '$TestEnumCopyWith' isn't defined for the type '_$TestModelCopyWithImpl'. (undefined_method at [bug] lib/freezed_bug.freezed.dart:57)
error: Undefined class '$TestEnumCopyWith'. (undefined_class at [bug] lib/freezed_bug.freezed.dart:72)

To Reproduce

import 'package:freezed_annotation/freezed_annotation.dart';

part 'freezed_bug.freezed.dart';

@freezed
class TestModel with _$TestModel {
  const factory TestModel({
    required TestEnum testEnum,
  }) = _TestModel;
}

@Freezed(copyWith: false)
class TestEnum with _$TestEnum {
  const factory TestEnum._({
    required int testNum,
  }) = _TestEnum;
}

[CartmanGD]

Facing the same issue... referring to my StackOverflow question