Background
As part of the solutions listed in T362650 to solve the Lookup usability issues for non-valid results, we need to automatically select the item from the menu when it matches with the text typed within the Lookup.
Open Questions
- What events should be emitted on automatic selection, if any?
- Should this be an option or always the default?
- Should this behavior apply only when the menu items will have unique labels?
Acceptance criteria (or Done)
- When the text of the Lookup exactly matches the label of one of the Menu items, it is selected by automatically on blur.
- If there are multiple menu items that match the text, the menu item is not automatically selected on blur.

