ASDataController now handles reloadData more efficiently and notify its delegate once instead of a series of deletes and inserts

AsyncDisplayKit/Details/ASRangeController.mm

@@ -276,4 +276,17 @@
   });
 }
 
+- (void)dataControllerDidReloadData:(ASDataController *)dataController
+{
+  ASPerformBlockOnMainThread(^{
+    _rangeIsValid = NO;
+    
+    // When reload data we need to make sure that _rangeTypeIndexPaths is cleared as well,
+    // otherwise _updateVisibleNodeIndexPaths may try to retrieve nodes from dataSource that aren't there anymore
+    [_rangeTypeIndexPaths removeAllObjects];
+    
+    [_delegate rangeControllerDidReloadData:self];
+  });
+}
+
 @end