anchor.diff:      [ {group, long_chain} ].
   
   groups() ->
  -    [{long_chain, [], [
  +    [{long_chain, [sequence], [
  +        long_chain_mine_and_export,
  +        {group, long_chain_tests}]},
  +     {long_chain_tests, [], [
           mining_governed_rate,
           startup_speed,
           startup_speed_mining,
  
positive.code: 
  % Test cases
  -export([
      startup_speed/1,
      startup_speed_mining/1,
      sync_speed/1,
  
negative.code:     Ref = aest_nodes:export(n1, Tag, Cfg),
      [kill_node(N, Cfg) || N <- Nodes],
  
      {save_config, [{height, Height}, {source, Ref}]}.
  
  startup_speed(Cfg) ->
      % This test verifies that startup does not take longer than mining
  