Can't load session multiple times in same request and get saved value about scs HOT 1 CLOSED

package main

import (
	"fmt"
	"net/http"
	"net/http/httptest"

	"github.com/alexedwards/scs"
)

var manager = scs.NewCookieManager("u46IpCV9y5Vlur8YvODJEhgOY8m9JVE4")

type Site struct {
}

func (site Site) ServeHTTP(w http.ResponseWriter, req *http.Request) {
	session := manager.Load(req)
	session.PutString(w, "key", "value")
	fmt.Println(session.GetString("key"))

	session2 := manager.Load(req)
	// should be able to get saved value
	fmt.Println(session2.GetString("key"))
}

func main() {
	Server := httptest.NewServer(manager.Multi(Site{}))

	http.Get(Server.URL)
}