message: don't consume all keys
diff: @@ -183,6 +183,8 @@ export class ContextMenu extends React.Component {
  };
  _onKeyDown = (ev) => {
  + let handled = true;
  +
  switch (ev.key) {
  case Key.TAB:
  case Key.ESCAPE:
  @@ -200,11 +202,15 @@ export class ContextMenu extends React.Component {
  case Key.END:
  this._onMoveFocusHomeEnd(this.state.contextMenuElem, false);
  break;
  + default:
  + handled = false;
  }
  + if (handled) {
  // consume all other keys in context menu
  ev.stopPropagation();
  ev.preventDefault();
  + }
  };
  renderMenu(hasBackground=this.props.hasBackground) {
  