NavigationSplitView crashes in Xcode, iOS Beta 7

I have a NavigationSplitView with a sidebar. When selecting a new item on the sidebar, the app crashes. The error message says:

Simultaneous accesses to 0x6000030107f0, but modification requires exclusive access.

Xcode shows that the crash occurs inside the generated code in my class with @Observable macro.

@ObservationIgnored private let _$observationRegistrar = Observation.ObservationRegistrar()

internal nonisolated func access<Member>(
    keyPath: KeyPath<NavModel , Member>
) {
  _$observationRegistrar.access(self, keyPath: keyPath)
}

internal nonisolated func withMutation<Member, MutationResult>(
  keyPath: KeyPath<NavModel , Member>,
  _ mutation: () throws -> MutationResult
) rethrows -> MutationResult {
  // Crash occurs on the following line
  try _$observationRegistrar.withMutation(of: self, keyPath: keyPath, mutation)
}

@ObservationIgnored private var _section: SidebarSection? = .one

To reproduce the crash, I tap a new item on the sidebar until the app crashes. It usually only takes 1-3 times selecting a new item before the crash occurs.

Below is the code for an entire app to reproduce the crash. Has anyone else encountered this issue? Thank you!

import SwiftUI

@main
struct NavigationBugApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

@Observable
class NavModel {
    var section: SidebarSection? = .one
}

enum SidebarSection: Hashable {
    case one
    case two
}

struct ContentView: View {
    @State private var model = NavModel()
    
    var body: some View {
        NavigationSplitView {
            List(selection: $model.section) {
                NavigationLink("One", value: SidebarSection.one)
                NavigationLink("Two", value: SidebarSection.two)
            }
            .listStyle(.sidebar)
        } detail: {
            Text("Hello World")
        }
    }
}

#Preview {
    ContentView()
}