message: Keep the mapping of distributed variables' values in map_resources().
diff: @@ -260,6 +260,10 @@ class _SaveableView(object):
  obj_to_copy)
  if ds_values.is_distributed_variable(obj):
  self.captured_tensor_node_ids[obj] = node_id
  + for v in obj.values:
  + object_map[v] = new_variable
  + resource_map[v.handle] = new_variable.handle
  + self.captured_tensor_node_ids[v.handle] = node_id
  object_map[obj] = new_variable
  resource_map[obj.handle] = new_variable.handle
  self.captured_tensor_node_ids[obj.handle] = node_id
  