The condition of subsection (a) shall be satisfied if a partner duly files notice of appeal from a decision under section
6226,
6228
(a),
6247, or
6252 and on or before the time the notice of appeal is filed with the Tax Court, a bond in an amount fixed by the Tax Court is filed, and with surety approved by the Tax Court, conditioned upon the payment of deficiencies attributable to the partnership items to which that decision relates as finally determined, together with any interest, penalties, additional amounts, or additions to the tax provided by law. Unless otherwise stipulated by the parties, the amount fixed by the Tax Court shall be based upon its estimate of the aggregate liability of the parties to the action.