When the proceeds of sale of any shares belonging to parties to the action who are known are paid into court the action may be continued as between them for the determination of their respective claims thereto. Further testimony may be taken in court or by a referee, at the discretion of the court, which may, if necessary, require the parties to present the facts in controversy by pleadings, as in an original action. The proceedings authorized by this section shall not delay or affect any party whose rights are not involved therein.