message: Update reshape shape field when introducing a copy.
diff: @@ -1265,8 +1265,13 @@ void InsertCopyOperator(Model* model, const string& source_array_name,
  auto* copy_op = new TensorFlowReshapeOperator;
  copy_op->inputs = {
  source_array_name,
  - CreateInt32Array(model, target_array_name + "_copy_shape", shape)};
  + CreateInt32Array(
  + model, AvailableArrayName(*model, target_array_name + "_copy_shape"),
  + shape)};
  copy_op->outputs = {target_array_name};
  + if (target_array.has_shape()) {
  + copy_op->shape = target_array.shape().dims();
  + }
  model->operators.emplace_back(copy_op);
  }
  