SwiftData changes made in widget via AppIntent are not reflected in main app until full relaunch

Hi, I’m using SwiftData with an @Observable DatabaseManager class that is shared between my app and a widget. This class is located inside a Swift package and looks roughly like this:

public final class DatabaseManager {
    public static let shared = DatabaseManager()
    
    private init() {
        let groupID = "group.com.yourcompany.myApp"
        let config = ModelConfiguration(groupContainer: .identifier(groupID))
        let c = try! ModelContainer(for: MyModel.self, configurations: config)
        self.container = c
        self.modelContext = c.mainContext
    }

    public private(set) var container: ModelContainer
    public private(set) var modelContext: ModelContext
}

In the main app, I inject the container and context like this:

struct MyApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
                .modelContainer(DatabaseManager.shared.container)
                .modelContext(DatabaseManager.shared.modelContext)
        }
    }
}

Both the widget and the main app import the same package, and both use DatabaseManager.shared for reading and writing objects.

The problem: When the widget updates an object using an AppIntent, the change is not reflected in the main app unless I fully terminate and relaunch it. If I just bring the app back to the foreground, it still shows stale data.

Is there a recommended way to make the main app observe or reload SwiftData changes that were made in the widget (via the same shared app group and container)? I’m already using .modelContainer(...) and .modelContext(...) in the app, and everything else works fine — it’s just the syncing that doesn’t happen unless I force-relaunch the app.

Thanks!