Xattrs are not replicated with XDCR?

                        for _, cluster in enumerate(self.get_cb_clusters()):

                            for bucket in cluster.get_buckets():

                                self.client = SDKClient(scheme="couchbase", hosts=[cluster.get_master_node().ip],

                                                            bucket=bucket.name).cb

                                for i in xrange(self._num_items):

                                    key = 'k_%s' % i

                                    res = self.client.get(key)  # body of the doc is json with xattr in my case

                                    for xk, xv in res.value.iteritems():

                                        rv = self.client.mutate_in(key, SD.get(xk, xattr=True))

                                        self.assertTrue(rv.exists(xk))

                                        self.assertEqual(xv, rv[xk])