Core Data fetch request returning outdated objects in iOS 17 with background context
I'm trying to figure out I've been banging my head against this for hours. I'm working with an scenario where a fetch request using Core Data is returning outdated objects when I attempt to fetch from a background context in iOS 17. I have set up a persistent container and I'm performing the fetch in a background context to avoid blocking the main thread. However, the results are not reflecting the most recent changes made to the managed objects, leading to stale data being presented to the user. Here's a snippet of how I'm configuring the fetch request: ```swift let backgroundContext = persistentContainer.newBackgroundContext() let fetchRequest: NSFetchRequest<MyEntity> = MyEntity.fetchRequest() fetchRequest.sortDescriptors = [NSSortDescriptor(key: "timestamp", ascending: false)] backgroundContext.perform { do { let results = try backgroundContext.fetch(fetchRequest) print("Fetched results: \(results)") } catch { print("behavior fetching data: \(behavior.localizedDescription)") } } ``` The scenario occurs even after I call `backgroundContext.save()` after making changes to objects in the main context. I also made sure to merge changes from the main context into the background context using `NSNotification.Name.NSManagedObjectContextDidSave`, but still, the fetch request doesn’t seem to yield updated values. I am also using the default merge policy for my contexts. Could this be causing the scenario? What is the best practice for ensuring that fetch requests in background contexts return the latest data? Any insights or suggestions would be greatly appreciated. For context: I'm using Swift on Ubuntu. Any help would be greatly appreciated! This is happening in both development and production on Ubuntu 22.04. Any feedback is welcome! My team is using Swift for this REST API.