Array of AppEnum in a Parameter will always be empty

Consider the following in an AppIntent:

struct TestIntent: AppIntent {
    static let title: LocalizedStringResource = "Test Intent"
    static var parameterSummary: some ParameterSummary {
        Summary("Test") {
            \.$options
        }
    }

    enum Option: Int, CaseIterable, AppEnum {
        case one
        case two
        case three
        case four
        case five
        case six

        static let typeDisplayRepresentation: TypeDisplayRepresentation =
            TypeDisplayRepresentation(
                name: "Options"
            )

        static let caseDisplayRepresentations: [Option: DisplayRepresentation] = [
            .one: DisplayRepresentation(title: "One"),
            .two: DisplayRepresentation(title: "Two"),
            .three: DisplayRepresentation(title: "Three"),
            .four: DisplayRepresentation(title: "Four"),
            .five: DisplayRepresentation(title: "Five"),
            .six: DisplayRepresentation(title: "Six"),
        ]
    }

    @Parameter(title: "Options", default: [])
    var options: [Option]

    @MainActor
    func perform() async throws -> some IntentResult {
        print(options)
        return .result()
    }
}

In Shortcuts, this will turn into a dropdown where you can check multiple Option values. However, when perform() is called, options will be an empty array regardless of what the user selects. This is observed on both iOS 18.5 and macOS 15.5. However, on iOS 26.0 beta and macOS 26.0 beta, the issue seems to be resolved and options contains all the checked options. However, we do back deploy to current/previous iOS/macOS versions. How can we provide a multiple choice selection of fixed values on these older versions?