Make a copy of the SparseSeries. Only the actual sparse values need to
        be copied

def copy(self, deep=True):
        """
        Make a copy of the SparseSeries. Only the actual sparse values need to
        be copied
        """
        # TODO: https://github.com/pandas-dev/pandas/issues/22314
        # We skip the block manager till that is resolved.
        new_data = self.values.copy(deep=deep)
        return self._constructor(new_data, sparse_index=self.sp_index,
                                 fill_value=self.fill_value,
                                 index=self.index.copy(),
                                 name=self.name).__finalize__(self)