title: e:Core data self referential relationships lost after application relaunch
body: <p>I am developing a Core Data based iPad application and have self referential relationships in some entities. I have to-many relationships without inverse relationship. See the image below</p>
  
  <p><img src="https://i.stack.imgur.com/aff2F.png" alt="enter image description here"></p>
  
  <p><strong>Problem:</strong></p>
  
  <p>After saving data when I fetched related products it gives me correct related products but when launch application again, it returns 0 related products. </p>
  
  <p><strong>Update:</strong>
  When I created Inverse relationship now its working fine, but in my scenario i don't need that inverse relation.</p>
  
  <p><strong>Explanation:</strong></p>
  
  <p>I have a product A, which has products B, C and D as related product. 
  But B don't have A as related product that's why I can't use inverse relationship.</p>