Conditionals do not behave as expected

[twodayslate]

https://github.com/aheze/Setting/assets/1085707/c561f23f-4c8f-44a9-addb-90b8f24b48d6

struct ContentView: View {
    @State var enableSecondGroup = false
    var body: some View {
        VStack {
            Button {
                enableSecondGroup.toggle()
            } label: {
                Text("Toggle Group 2")
            }
            SettingStack {
                SettingPage(title: "Playground") {
                    SettingGroup(header: "Group 1") {
                        SettingCustomView {
                            Text("Hello Group 1")
                        }
                    }

                    if enableSecondGroup {
                        SettingGroup(header: "Group 2") {
                            SettingCustomView {
                                Text("Hello Group 2")
                            }
                        }
                    }

                }
            }
        }
        .padding()
    }
}

Expected behavior

Group 1 should only be visible when the toggle is off; Group 1 and 2 should be visible when toggle is on

Actual behavior

Group 1 is visible when toggle is off; Group 2 is duplicated when toggle is on