Error when I change the attributes if DataSaver with refresh=True

[jinserk]

When I added attributes with DataSaver refresh=True, it gives an error like:

Traceback (most recent call last):
  File "/home/jinserk/.pyenv/versions/3.8.5/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/jinserk/.pyenv/versions/3.8.5/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/mnt/ssd2/works/kyulux/kyumlm/tddft/ann/feature.py", line 205, in <module>
    store_to_matorage(ds)
  File "/mnt/ssd2/works/kyulux/kyumlm/tddft/ann/feature.py", line 198, in store_to_matorage
    save_data_list(train_list, "train")
  File "/mnt/ssd2/works/kyulux/kyumlm/tddft/ann/feature.py", line 190, in save_data_list
    data_saver({
  File "/home/jinserk/.pyenv/versions/kyumlm/lib/python3.8/site-packages/matorage/data/saver.py", line 317, in __call__
    self._check_data_numpytype()
  File "/home/jinserk/.pyenv/versions/kyumlm/lib/python3.8/site-packages/matorage/data/saver.py", line 254, in _check_data_numpytype
    self._check_attr_name(name=name)
  File "/home/jinserk/.pyenv/versions/kyumlm/lib/python3.8/site-packages/matorage/data/saver.py", line 229, in _check_attr_name
    raise KeyError("attribute name {} is not exist!".format(name))
KeyError: 'attribute name inchikey is not exist!'

It seems to check the config attributes as well as the other params, or to reset the attributes when refresh=True.

[graykode]

Like the previous issue (#21), this error seems to be a problem of the list_object function overridden in the NAS. If that doesn't work, please ask again for me. Thanks