Except as provided by § 45a-380, no suit shall be brought against the fiduciary of an estate in course of settlement as insolvent. If judgment has been rendered against such fiduciary before the commencement of its settlement as an insolvent estate, execution shall not issue, but the creditor may present his judgment to the fiduciary and receive his proportionate share of the estate with the other creditors. If judgment has not been rendered, any pending suit shall abate and the creditor shall submit his claim to the fiduciary and may request that costs incurred in connection with the suit up to the date of abatement be added to the claim.