Provided also, that in Actions to be commenced against Two or more such Joint Contractors, or Executors or Administrators, if it shall appear at the Trial or otherwise that the Plaintiff, though barred by either of the said recited Acts or this Act, as to One or more or such Joint Contractors, or Executors or Administrators, shall nevertheless be entitled to recover against any other or others of the Defendants, by virtue of a new Acknowledgment or Promise, or otherwise, Judgment may be given and Costs allowed for the Plaintiff as to such Defendant or Defendants against whom he shall recover, and for the other Defendant or Defendants against the Plaintiff.