mne-python: ASCII decode error with CNT files

As reported on our mailing list, this CNT file seems to contain a non-ASCII character (î), which leads to a decoding error:

---------------------------------------------------------------------------
UnicodeDecodeError                        Traceback (most recent call last)
<ipython-input-9-8d42a9688cc0> in <module>
      1 fname = fnames[0]
----> 2 raw = mne.io.read_raw_cnt(fname)

~/anaconda3/lib/python3.7/site-packages/mne/io/cnt/cnt.py in read_raw_cnt(input_fname, eog, misc, ecg, emg, data_format, date_format, preload, verbose)
    163     return RawCNT(input_fname, eog=eog, misc=misc, ecg=ecg,
    164                   emg=emg, data_format=data_format, date_format=date_format,
--> 165                   preload=preload, verbose=verbose)
    166 
    167 

~/anaconda3/lib/python3.7/site-packages/mne/io/cnt/cnt.py in __init__(self, input_fname, eog, misc, ecg, emg, data_format, date_format, preload, verbose)
    389         input_fname = path.abspath(input_fname)
    390         info, cnt_info = _get_cnt_info(input_fname, eog, ecg, emg, misc,
--> 391                                        data_format, _date_format)
    392         last_samps = [cnt_info['n_samples'] - 1]
    393         super(RawCNT, self).__init__(

~/anaconda3/lib/python3.7/site-packages/mne/io/cnt/cnt.py in _get_cnt_info(input_fname, eog, ecg, emg, misc, data_format, date_format)
    179         patient_id = int(patient_id) if patient_id.isdigit() else 0
    180         fid.seek(121)
--> 181         patient_name = read_str(fid, 20).split()
    182         last_name = patient_name[0] if len(patient_name) > 0 else ''
    183         first_name = patient_name[-1] if len(patient_name) > 0 else ''

~/anaconda3/lib/python3.7/site-packages/mne/io/utils.py in read_str(fid, count)
    239                              b'\x00' in data else count]])
    240 
--> 241     return str(bytestr.decode('ascii'))  # Return native str type for Py2/3
    242 
    243 

UnicodeDecodeError: 'ascii' codec can't decode byte 0xee in position 0: ordinal not in range(128)

Should the function read_str default to decoding latin-1 aka 8859 instead?