Section 911. Ascertainment of rights of parties before interlocutory judgment on default or admission or where party is an infant, absentee or unknown defendant

If  a  defendant  has  made  default  in appearing or pleading, or the
  rights of the parties are not controverted, or a  party  be  an  infant,
  absentee  or  unknown,  the court shall ascertain the rights, shares and
  interests of the several parties in the  property,  by  a  reference  or
  otherwise, before interlocutory judgment is rendered.