title: Can two managed object context share one single persistent store coordinator?
body: <p>Example: I have one persistent store coordinator which uses one single persistent store.</p>
  
  <p>Now there are two managed object contexts, and both want to use the same persistent store. Could both simply use the same persistent store coordinator, or would I have to create two instances of NSPersistentStoreCoordinator? And if I had to, then: Would I also have to create two NSPersistentStore instances?</p>