Main actor-isolated property 'xxx' can not be referenced from a Sendable closure

I'm having an issue with my photo app after upgrading to Swift 6. In the example below, I’m getting this error (Main actor-isolated property 'photoImage' can not be referenced from a Sendable closure). Does anyone know how to solve this? Assigning it to a different value in .task on launch doesn't work either.

import SwiftUI
import PhotosUI

@Observable
final class CameraModel {
    var thumbnail: String?
}

struct ContentView: View {
    @State var camera = CameraModel()
    @State var selectedItems: [PhotosPickerItem] = []
    var body: some View {
        PhotosPicker(selection: $selectedItems, photoLibrary: .shared()) {
           // I’m getting an error here
            photoImage
        }
    }
    
    
    @ViewBuilder
    private var photoImage: some View {
        if let thumbnail = camera.thumbnail {
            Image(thumbnail)
                .resizable()
                .aspectRatio(contentMode: .fill)
                .animation(.easeInOut(duration: 0.3), value: thumbnail)
        } else {
            Image(systemName: "photo.on.rectangle")
        }
    }
}

#Preview {
    ContentView(camera: CameraModel())
}

A possible work-around is to retire the actor-isolated property and create a separate View. And we can use a capture list to grab the thumbnail from the actor-isolated camera, too:

struct ContentView: View {
    @State var camera = CameraModel()
    @State var selectedItems: [PhotosPickerItem] = []

    var body: some View {
        PhotosPicker(selection: $selectedItems, photoLibrary: .shared()) { [thumbnail = camera.thumbnail] in
            PhotoImage(thumbnail: thumbnail)
        }
    }
}

struct PhotoImage: View {
    let thumbnail: String?

    var body: some View {
        if let thumbnail {
            Image(thumbnail)
                .resizable()
                .aspectRatio(contentMode: .fill)
                .animation(.easeInOut(duration: 0.3), value: thumbnail)
        } else {
            Image(systemName: "photo.on.rectangle")
        }
    }
}