level seems to clear restify's per-request domain

server.js

// Launch this server and hit it with your browser.
// In the console you'll see:
//
// Has domain before level: true
// Has domain after level: false

var domain = require('domain');
var restify = require('restify');
var level = require('level');
var db = level('./testdb');

var server = restify.createServer();
server.get('/', function (req, res, next) {
  console.log('BEGIN');
  console.log("Has domain before level: " + !!domain.active);
  db.get('bogus', function () {
    console.log("Has domain after level: " + !!domain.active);
    res.send(200);
    next();
  });
});
server.listen(8080);