New separate functionality for disclosure and normal list in 2.0 beta2

In List: before 2.0-beta2 to separate functionality for itemtap in disclosure and normal list was:

list.addListener('itemtap', function(list, index, element, e) {
if (e.getTarget('div.x-list-disclosure')) {...} else {...}
}

Now with new 2.0 beta 2 version don't works and return this error:

TypeError: 'undefined' is not a function (evaluating 'e.getTarget()')

How can I do now?
Many thanks!

The arguments have changed for itemtap. The eventObject is now the 5th argument

http://docs.sencha.com/touch/2-0/#!/...-event-itemtap