* update tests to expose bug in React implementation
* fix incorrect `active` state on mouseLeave
The React code had a bug in the Listbox and Combobox components where it
incorrectly made the first selected value the active value.
The first selected option should be the active option when you open the
listbox. However when you already had the component in an `open` state,
hovered over a non-selected item and them left the option by moving it
to the body then the first selected option became the active one again.
This made sense because we used a `useEffect` in each option to make it
the active one if it was also selected. Since every component
re-renders, code got called and the bug arises.
Now, instead we moved the logic to make it the active option to the
reducer logic. We will check it when we register an option and doesn't
have an active option index yet or when we open the Listbox/Combobox.
This should also solve the strange scrolling behaviour where the options
scroll up if you have more options than you display.
* update changelog
Robin Malfait
4f8c615245