title: "Core Data could not fulfill a fault" for objects that were not deleted
body: <p>For a recent update to an app, I am seeing many crash logs with the error that core data could not fulfill a fault. But nowhere in the app (startup, or elsewhere) did I delete the objects whose faults cannot be fulfilled, nor would they have been cascade deleted. How else can this error be happening? And is there a way to catch it and fix it within the live app?</p>
  
  <p>Could it also be if you added but did not properly save the object yet?</p>