text: Title: onHover event in ComboBox changes selected_item
  Body: I am trying to extract the selected value from a ComboBox with `combo_box.selected_text()` through the `win32` backend, with no success as each time my mouse is hovering on another **not selected** item, this function returns the hovered item's text and not my selected item's text.
  
  Am I missing something or is this intentional behavior on `onHover` event?
  
  I've tried numerous ways to extract the selected value + tried to understand if the combo box list is visible (which means the user might hover over some items) but with no success at all.
  
  I noticed (through Accessibility Insights) that there is a certain property in `ComboBox` item indicating the `selectedValue`, how do I extract it?
  
  <img width="414" alt="Screen Shot 2022-12-18 at 10 19 54" src="https://user-images.githubusercontent.com/5401999/208290452-633c13d6-6263-4681-a59f-3de2bf09ff81.png">
  