DisclosureGroup with Table

Does embedding a Table inside a DisclosureGroup not work? If I uncomment the DisclosureGroup in the code below, the table doesn't display. Is there anything that I can do to make it work?

import SwiftUI
import PlaygroundSupport

class Foo: Identifiable {
    let id: Int
    let num: Double
    
    init(id: Int, num: Double) {
        self.id = id
        self.num = num
    }
}

typealias FooArray = [Foo]

struct ContentView: View {
    @State var foos: FooArray = [
        Foo(id: 1, num:0.0 ),
        Foo(id: 2, num:0.1 ),
        Foo(id: 3, num:0.2 ),
        Foo(id: 4, num:0.3 )
    ]
    @State private var revealFoos = true

    var body: some View {
        VStack {
            Text("Foo")
                .font(.title)
                .bold()
            Divider()
            
            //DisclosureGroup("Foos", isExpanded: $revealFoos) {
                FooTable(foos: foos)
            //}
            
            Spacer()
        }
    }
}

struct FooTable : View {
    var foos: FooArray
    @State private var sortOrder = [KeyPathComparator(\Foo.id, order: .reverse)]
    
    var body: some View {
        VStack {
            Table(foos, sortOrder: $sortOrder) {
                TableColumn("ID", value: \.id) { value in
                    Text(value.id.description)
                }
                TableColumn("Number", value: \.num) { value in
                    Text(value.num.description)
                        .frame(maxWidth: .infinity, alignment: .trailing)
                }
            }
        }
    }
}

PlaygroundPage.current.setLiveView(ContentView())