Would it be possible to add an event for when the search input of the DropdownSearch widget is changed? Alternatively, an event for when the search yields no matches would be useful.
The use case I have in mind is a user searches for an item in the DropdownSearch. If no items are found, an option for the user to specify a custom item is given. For example, the DropdownSearch has a list of books. The user searches for a book that is not in the list. The user has the option of specifying the book that the user has in mind.