Shared modelContainer between DocumentGroup and WindowGroup

Hi,

I am currently developing a document-based application with additional WindowGroup for macOS and have encountered a challenge related to document container management. Specifically, I need to open a windowGroup that shares the same container as the one used in the DocumentGroup. However, my current approach of using a global shared model container has led to unintended behavior: any new document created is linked to existing ones, and changes made in one document are reflected across all documents.

To address this issue, I am looking for a solution that allows each newly created document to be individualized while still sharing the document container with all relevant WindowGroups that require access to the data it holds. I would greatly appreciate any insights or recommendations you might have on how to achieve this.

 struct Todo: App {
     var body: some Scene {
         DocumentGroup(editing: Item.self, contentType: .item) {
             ContentView()
         }
         WindowGroup(for: Item.self) { $item in
          ItemView(item:$item)
              .modelContainer(Of DocumentGroup above)
        }
     }
 }

Thank you for your time and assistance.

Best regards,