From 0304067beb894c0b9a43752d7a75c0340d9b5c10 Mon Sep 17 00:00:00 2001
From: John Rommel Estropia <rommel.estropia@gmail.com>
Date: Tue, 6 Jun 2017 00:49:16 +0900
Subject: [PATCH] fix ToManyOrdered and ToManyUnordered enumeration crash

---
 Sources/Relationship.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sources/Relationship.swift b/Sources/Relationship.swift
index dbfb708..88606be 100644
--- a/Sources/Relationship.swift
+++ b/Sources/Relationship.swift
@@ -861,7 +861,7 @@ extension RelationshipContainer.ToManyOrdered: RandomAccessCollection {
     public func makeIterator() -> Iterator {
         
         let iterator = self.nativeValue.makeIterator()
-        return AnyIterator({ D.cs_fromRaw(object: iterator.next() as! NSManagedObject) })
+        return AnyIterator({ iterator.next().flatMap({ D.cs_fromRaw(object: $0 as! NSManagedObject) }) })
     }
     
     
@@ -916,7 +916,7 @@ extension RelationshipContainer.ToManyUnordered: Sequence {
     public func makeIterator() -> Iterator {
         
         let iterator = self.nativeValue.makeIterator()
-        return AnyIterator({ D.cs_fromRaw(object: iterator.next() as! NSManagedObject) })
+        return AnyIterator({ iterator.next().flatMap({ D.cs_fromRaw(object: $0 as! NSManagedObject) }) })
     }
 }