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Nr% rI r% r% r& r � s zBaseFormSet.cleanc C � t dd� | D ��S )z5Return True if data in any form differs from initial.c s s � | ]}|� � V qd S rP )r� r� r% r% r& rY � s � z*BaseFormSet.has_changed.<locals>.<genexpr>)rZ rI r% r% r& r� � s zBaseFormSet.has_changedc C s� | � � }| jr/|dur!||k r!ttd�|d d| �� d�|jt< nttd�d| �� d�|jt< | jrM| js=|durO||k rQt td�d| �
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