lib/mongoid/relations/targets/enumerable.rb in mongoid-3.0.19 vs lib/mongoid/relations/targets/enumerable.rb in mongoid-3.0.20

@@ -442,11 +442,11 @@
           entries.send(name, *args, &block)
         end
 
         def matching_document(location)
           _loaded.try(:values).try(location) ||
-            _added[_unloaded.try(location).try(:id)] ||
-            _unloaded.try(location) ||
+            _added[(ul = _unloaded.try(location)).try(:id)] ||
+            ul ||
             _added.values.try(location)
         end
       end
     end
   end