message: tests: add a test case to the collect() vmId scoping test
diff: @@ -489,4 +489,5 @@ test('collect() is scoped by vmId', () => {
  mirror.add({ field: 'field', msg: 'nope' });
  expect(mirror2.collect()).toEqual({});
  expect(mirror.collect()).toEqual({ field: ['nope'] });
  + expect(errors.collect()).toEqual({ field: ['nope'] });
  });
  