fail reporter buffering doesn't play nice w/ watching

[nevir]

So, say I'm making use of gulp-watch:

gulp.task('watch', function() {
  return gulp.src(SOURCES)
      .pipe(watch(SOURCES))
      .pipe(plumber({errorHandler: notify.onError("Error: <%= error.message %>")}))
      .pipe(jshint())
      .pipe(jshint.reporter('fail', {buffer: false}));
});

Even with buffer: false, the errors are never emitted (because the stream doesn't end). It'd be nice to either emit errors immediately if buffering is false, or maybe give an option for that?