Should any person interested pay, after the bill is filed, and before sale of the land, to the attorney representing the municipality, or such other person as may be designated by the municipality to receive it, the amount of taxes sued for, and interest thereon, it shall be the duty of the attorney aforementioned to dismiss the suit as to the persons and property included in the payment; provided, that the person so paying the taxes shall pay such person’s just proportion of the costs accrued in the cause to the date of payment.