Reading PyCBC Live files fails when columns names overlap with selection columns

Reading PyCBC Live files fails when the columns list overlaps with the selection columns:

  File "/home/detchar/opt/summary-2.7/lib/python2.7/site-packages/gwpy/table/io/pycbc.py", line 114, in table_from_file
    return filter_table(Table(data, meta=meta), selection)[columns]
  File "/home/detchar/opt/summary-2.7/lib/python2.7/site-packages/astropy/table/table.py", line 411, in __init__
    init_func(data, names, dtype, n_cols, copy)
  File "/home/detchar/opt/summary-2.7/lib/python2.7/site-packages/astropy/table/table.py", line 684, in _init_from_list
    self._init_from_cols(cols)
  File "/home/detchar/opt/summary-2.7/lib/python2.7/site-packages/astropy/table/table.py", line 758, in _init_from_cols
    self._make_table_from_cols(self, newcols)
  File "/home/detchar/opt/summary-2.7/lib/python2.7/site-packages/astropy/table/table.py", line 803, in _make_table_from_cols
    raise ValueError('Duplicate column names')
ValueError: Duplicate column names