[TIMOB-23118] iOS: Ti.UI.iOS.DynamicItemBehavior can possibly crash during iteration

   var win = Ti.UI.createWindow({backgroundColor: 'white', fullscreen: true});
   
   // Create an Animator object using the window as the coordinate system
   var animator = Ti.UI.iOS.createAnimator({referenceView: win});
   
   // Create a red block
   var redBlock = Ti.UI.createView({
       backgroundColor: 'red',
       width: 25,
       height: 25,
       top: 25,
       left: 25
   });
   
   // Change the physics attributes of the red block
   var redDynamic = Ti.UI.iOS.createDynamicItemBehavior({
       density: 20.0,
       angularResistance: 1.0,
       friction: 1.0,
       resistance: 1.0,
       allowsRotation: false
   });
   redDynamic.addItem(redBlock);
   
   // Apply a left push to the red block
   var redPush = Ti.UI.iOS.createPushBehavior({
       pushDirection: {x: 2.0, y: 0.0}
   });
   redPush.addItem(redBlock);
   
   // Create a blue block
   var blueBlock = Ti.UI.createView({
       backgroundColor: 'blue',
       width: 50,
       height: 50,
       top: 25,
       right: 25
   });
   
   // Change the physics attributes of the blue block
   var blueDynamic = Ti.UI.iOS.createDynamicItemBehavior({
       elasticity: 1.0,
   });
   blueDynamic.addItem(blueBlock);
   
   // Apply a right push to the blue block
   var bluePush = Ti.UI.iOS.createPushBehavior({
       pushDirection: {x: -2.0, y: 0.0}
   });
   bluePush.addItem(blueBlock);
   
   // Create the collision behavior so the items can collide
   var collision = Ti.UI.iOS.createCollisionBehavior();
   collision.addItem(redBlock);
   collision.addItem(blueBlock);
   
   animator.addBehavior(redDynamic);
   animator.addBehavior(redPush);
   animator.addBehavior(blueDynamic);
   animator.addBehavior(bluePush);
   animator.addBehavior(collision);
   
   // Start the animation when the window opens
   win.addEventListener('open', function(e){
       animator.startAnimator();
   });
   
   win.add(redBlock);
   win.add(blueBlock);
   win.open();