[TIMOB-5893] iOS: iPad - Reopening grouped tableview renders additional blank space on the top of the window

var win = Ti.UI.createWindow();
var win2 = Ti.UI.createWindow();

var table = Ti.UI.createTableView({style : Ti.UI.iPhone.TableViewStyle.GROUPED, top:0});

var data = [ 
   {   
      title    : "row 1",
      header   : "heading"
   },  
   {   
      title    : "row 2"
   }   
];  

table.setData(data);

var btn = Ti.UI.createButton({title : "open"});

win.add(btn);

btn.addEventListener('click', function (e) {
   win2.open();
}); 

table.addEventListener('click', function (e) {
   win2.close();
}); 

win2.add(table);

win.open();