message: remove derivative ref restriction
diff: @@ -29,7 +29,7 @@ export const derivativeOnChange = async (
  if (shouldEval) {
  const newValue = await currDerivative.eval(db)({
  row: afterData,
  - ref: { path: ref.path, id: ref.id },
  + ref,
  });
  if (newValue !== undefined) {
  return {
  