message: Fixed HloSharding::Hash for tuple.
diff: @@ -453,7 +453,7 @@ tensorflow::gtl::optional<HloSharding> HloSharding::ExtractSingleSharding()
  }
  size_t HloSharding::Hash() const {
  - if (!tuple_) {
  + if (tuple_) {
  size_t h = 0;
  for (const auto& element : tuple_elements_) {
  h = tensorflow::Hash64Combine(h, element.Hash());
  