message: API: get_block ref_block_prefix needs to return uint32 (not a unit64) fix
diff: @@ -397,13 +397,12 @@ fc::variant read_only::get_block(const read_only::get_block_params& params) cons
  fc::variant pretty_output;
  abi_serializer::to_variant(*block, pretty_output, make_resolver(this));
  -
  -
  + uint32_t ref_block_prefix = block->id()._hash[1];
  return fc::mutable_variant_object(pretty_output.get_object())
  ("id", block->id())
  ("block_num",block->block_num())
  - ("ref_block_prefix", block->id()._hash[1]);
  + ("ref_block_prefix", ref_block_prefix);
  }
  read_write::push_block_results read_write::push_block(const read_write::push_block_params& params) {
  