v1.2.2

Fixed

• A menu trigger nested one button inside another. The wrapper carried
  role="button" and a tabindex of its own while the trigger slot normally
  holds a real button — a screen reader announced two nested controls and the
  keyboard landed on one or the other. The wrapper now steps aside when the
  slot already holds a control, handing its aria-haspopup, aria-expanded
  and aria-controls to it; when the slot holds something inert — a plain
  avatar, say — the wrapper stays the button, so the menu is still reachable
  from the keyboard.