message: Fixed: handler name changes handleKeyDown to handleFormKeyDown.
diff: @@ -24,7 +24,7 @@ export default function() {
  this.opts.onchange(Number(number) - (this.opts.step || 1) );
  };
  - this.handleKeyDown = (e) => {
  + this.handleFormKeyDown = (e) => {
  switch (e.code) {
  case 'ArrowUp':
  this.handleIncreaseButtonPat();
  