Any bond given to replace a former bond, when given and approved, discharges the former sureties from any liabilities arising from any misconduct of the principal after the filing of same, and the former sureties are only liable for misconduct which happened prior to the giving of the new bond. The executor or administrator shall be required to file an account of his administration to the date of the new bond. The new bond binds the sureties thereon with respect to acts and omissions of the executor or administrator from the time when the sureties on the original bond are no longer liable therefor, or from such prior time as the court directs.