message: corrected comment in test_restart_round
diff: @@ -100,7 +100,7 @@ def test_restart_round():
  # and back again to training...
  hb.state = coordinator_pb2.ROUND
  hb.round = 8 # but still in round 8!
  - # => interpret this as "round restarted" e.g. coordinator didn't receive update
  + # => interpret this as "round restarted" e.g. original theta was corrupt or something
  transit(st, hb)
  # => re-do the training...
  assert st.lookup() == (ParState.TRAINING, 8)
  