jQuery mobile - pagecontainerload event ui parameter empty

jQuery mobile - pagecontainerload event ui parameter empty

  
    
   
  1. $('body').pagecontainer({
    2. 
   
  2.  load : function(a,jq){
    3. 
   
  3.  console.log($.isEmptyObject(jq))
    4. 
   
  4.  }
    5. 
   
  5. });
    6. 
  
Returns true. That definitely shouldn't be the case, according to the documentation
Any ideas what's going on?
Stackoverflow link to those who feel like earning some points: 
http://stackoverflow.com/questions/25335776/jquery-mobile-pagecontainerloader-event-ui-parameter-empty