Destroying and recreating a Toolbar in the same DOM element causes problem with Splitbutton expansion via keyboard. To reproduce:
1. Create a toolbar with a splitbutton. Using the keyboard, tab to the splitbutton and use alt-down to expand it. Works great.
2. Destroy the toolbar with .destroy(), and empty the containing DOM element.
3. Create a toolbar with a splitbutton in the same (now empty) DOM.
4. Tab to the splitbutton and press alt-down. The splitbutton expands and immediately closes.
Demonstrated here: http://dojo.telerik.com/@richm/odATu
Any advice is greatly appreciated!