MenuAction not firing on MenuHandler when a key is pressed on undraw [1-7] options

Environment

• Operating System version: Windows OS
• Game/AppID (with version if applicable): L4D2
• Current SourceMod version: 1.10.0.6499
• Current MetaMod version: Source version 1.10.7-dev

Description

[L4D2] Basically when I display a menu through a sourcemod plugin and a user press a key from an undraw option, the menu closes, but the MenuHandler is not triggered.
This also happens if the menu has pagination and a user selects next/back, but in this case I would suggest to return a new MenuAction.

Problematic Code

public void OnPluginStart()
{
    RegConsoleCmd("sm_testmenu", CmdTestMenu, "");
}

public Action CmdTestMenu(int client, int args)
{
    Menu menu = new Menu(HandleMenu);
    menu.SetTitle("Test");
    menu.AddItem("Test 1", "Test 1");
    menu.Display(client, MENU_TIME_FOREVER);
}

public int HandleMenu(Menu menu, MenuAction action, int client, int args)
{
    PrintToChatAll("action fired");
}

Steps to Reproduce

1. In-game type !testmenu in the chat.
2. Press the key "2".
3. No output to the chat.