_root: ABCD
// Add a dynamic text field.
_root: ABCD
child: ABCD
// Duplicate child.
_root: ABCD
old child: ABCD
child: undefined
child_clone: ABCD
// Duplicate child_clone.
old child: ABCD
child: undefined
old child_clone: ABCD
child_clone: undefined
child_clone2: ABCD
// Duplicate child again.
child: undefined
child_clone: undefined
child_clone2: ABCD
child_clone3: undefined
