[TIMOB-15967] iOS: keyboardToolbar fails to disappear

   var w = Ti.UI.createWindow();
   
   var rows = [];
   
   var x1 = Ti.UI.createTextField({
       hintText: "This is a hint text",
       width: 200,
       height: 44,
       top: 20,
       bottom: 20,
       keyboardType: Ti.UI.KEYBOARD_NUMBER_PAD,
       min: 0,
       max: 10
   });
   
   var dismissButtonToolBar1 = Ti.UI.createButton({
       title: "OK",
       style: Ti.UI.iPhone.SystemButtonStyle.DONE
   }, function(){
       x1.blur();
   });
   
   dismissButtonToolBar1.addEventListener("click", function() {
       x1.blur();
   })
   
    x1.setKeyboardToolbar([dismissButtonToolBar1]);
    x1.setKeyboardToolbarColor("#eaeaea");
    x1.setKeyboardToolbarHeight(44);
   
    var r1 = Ti.UI.createTableViewRow();
    r1.add(x1);
   
   rows.push(r1);
   
   var x2 = Ti.UI.createTextField({
       hintText: "This is a hint text",
       width: 200,
       height: 44,
       top: 20,
       bottom: 20,
       keyboardType: Ti.UI.KEYBOARD_NUMBER_PAD,
       min: 0,
       max: 10 
   });
   
   var dismissButtonToolBar2 = Ti.UI.createButton({
       title: "OK",
       style: Ti.UI.iPhone.SystemButtonStyle.DONE
   }, function(){
       x2.blur();
   });
   
   dismissButtonToolBar2.addEventListener("click", function() {
       x2.blur();
   })
   
    x2.setKeyboardToolbar([dismissButtonToolBar2]);
    x2.setKeyboardToolbarColor("#eaeaea");
    x2.setKeyboardToolbarHeight(44);
    
    var r2 = Ti.UI.createTableViewRow();
    r2.add(x2);
   
   rows.push(r2);
   
   
   var x3 = Ti.UI.createTextField({
       hintText: "This is a hint text",
       width: 200,
       height: 44,
       top: 20,
       bottom: 20,
       keyboardType: Ti.UI.KEYBOARD_NUMBER_PAD,
       min: 0,
       max: 10 
   });
   
   var dismissButtonToolBar3 = Ti.UI.createButton({
       title: "OK",
       style: Ti.UI.iPhone.SystemButtonStyle.DONE
   });
   
   dismissButtonToolBar3.addEventListener("click", function() {
       x3.blur();
   })
   
    x3.setKeyboardToolbar([dismissButtonToolBar3]);
    x3.setKeyboardToolbarColor("#eaeaea");
    x3.setKeyboardToolbarHeight(44);
   
    var r3 = Ti.UI.createTableViewRow();
    r3.add(x3);
   
   rows.push(r3);
   
   
   var bd = Ti.UI.createButton({
       title: "Crash",
       width: 100,
       height: 80,
   });
   
   bd.addEventListener("click", function() {
       t.setData(rows);
   });
   
   var r4 = Ti.UI.createTableViewRow();
   r4.add(bd);
   rows.push(r4);
   
   var t = Ti.UI.createTableView({data: rows});
   
   w.add(t);
   
   w.open();