ยง 2510. Discharge of surety on the undertaking of a fiduciary. (a) Motion; new undertaking; accounting. Surety on the undertaking of any fiduciary may move with notice to the person upon whose behalf the undertaking was given, to be discharged from liability for any act or omission of such fiduciary subsequent to the order of the court or the time when a new undertaking satisfactory to the court is filed. The court may restrain such fiduciary from acting pending the order discharging such surety from liability. Upon the hearing, the court shall order the fiduciary to give a new undertaking and to account, within such time as the court orders but not exceeding twenty days, for all his acts. If a new undertaking is filed the fiduciary shall account for his acts up to and including the date of such filing. Where the fiduciary does not comply with the order to account, the surety may make and file such account with the same effect as though filed by the fiduciary, and may utilize any disclosure device in obtaining information necessary for such an accounting. The court shall make such provisions with respect to commissions, allowances, disbursements and costs as it deems just. (b) Settlement of account. When such account has been filed, the court, upon sufficient notice, shall order all persons interested in the proceedings to attend a settlement of the account at a time and place specified, and such settlement shall be made and the rights and liabilities of all parties to the proceeding shall be determined and enforced. After settlement of the account, the court shall make an order relieving the surety from any act or omission of the fiduciary subsequent to the date of such order or the time when a new undertaking satisfactory to the court was filed, whichever is earlier. Upon written demand by the fiduciary, the surety shall return any compensation paid for the unexpired portion of such suretyship.