fix: 修复 server.Server 在使用 UseShunt 函数时由于未记录当前分发器导致的内存泄漏问题

server/server.go

@@ -596,6 +596,7 @@ func (slf *Server) UseShunt(conn *Conn, name string) {
 			delete(slf.dispatchers, curr.name)
 		}
 	}
+	slf.currDispatcher[conn.GetID()] = d
 
 	member, exist := slf.dispatcherMember[name]
 	if !exist {

server/server_test.go

@@ -24,6 +24,9 @@ func TestNew(t *testing.T) {
 		fmt.Println("关闭", conn.GetID(), err, "Count", srv.GetOnlineCount())
 	})
 	srv.RegConnectionOpenedEvent(func(srv *server.Server, conn *server.Conn) {
+		srv.UseShunt(conn, "1")
+		srv.UseShunt(conn, "2")
+		srv.UseShunt(conn, "3")
 		//if srv.GetOnlineCount() > 1 {
 		//	conn.Close()
 		//}