[useSelect] Selecting item with spacebar in firefox reopens the menu

• downshift version: 6.0.6
• firefox version: 82.0.3

Relevant code or config

Error present in reference implementation: https://www.downshift-js.com/use-select

What you did:

With firefox, open a menu and select an item with the spacebar key

What happened:

The item was selected, but the menu was reopened. Closely inspecting the result of onStateChange it is revelead that on key down the __menu_keydown_space_button__ is emitted, and on key up the __togglebutton_click__ is emitted.

Error is not present in chrome.

Reproduction repository:

Problem description:

Suggested solution: