message: add fixme to clipPath contain logic
diff: @@ -297,6 +297,8 @@ define(function (require) {
  var isSilent;
  while (el) {
  // If clipped by ancestor.
  + // FIXME: If clipPath has neither stroke nor fill,
  + // el.clipPath.contain(x, y) will always return false.
  if (el.clipPath && !el.clipPath.contain(x, y)) {
  return false;
  }
  