The DropDownButton/DropDownList in the ListView Template does not open on the user's click after a few interactions.

Steps to reproduce:

1. Open the REPL link.
2. Click on the DropDownButton.

The command buttons for the ListView does not render the Title attribute.

I have a ListView, bound to ObservableCollection and it stays in Edit mode, the Save command does not work and there is no way to save the item.

When you go backwards in the listview paging it exhibits two issues:

- some (almost random) elements remain after the paged elements

- if, as a first action, you go from the last to the first page through the pager buttons, an exception is thrown - Unhandled exception rendering component: Event 112 is already tracked