clearStore not work

[kannerban]

clearStore() items are not resetting correctly when I use this method. When I select an option, it adds a new item instead of resetting to the initial state.

[Xon]

It is actually a bug in the refresh which it is preserving previous selections, and the setChoiceByValue method not respecting the single selection when restoring the initial configuration

[Xon]

It was clearStore. It wasn't pruning the item list UI after the performance fixes around very large number of times.

I've got a fix, just want to confirm all the end-to-end tests still pass, including the new one to rest the form reset functionality