app-menu doesn't work with Mono Develop 2.4

[Connel Hooley]

MonoDevelop 2.4 doesn't work with the global application menu (app-menu). It's menu isn't displayed in the application or in the panel. I did notice that even the fall-back file and edit entries aren't displayed in the panel like when applications such as Firefox are running.

[Ted Gould (ted)]

It seems that the submenus aren't getting populated:

$ /usr/lib/libdbusmenu/dbusmenu-dumper --dbus-name=:1.1243 --dbus-object=/org/ayatana/menu/6800147
{
  "id": 0,
  "children-display": "submenu",
  "submenu": [
      {
        "id": 1,
        "enabled": true,
        "label": "File",
        "visible": true
      },
      {
        "id": 2,
        "enabled": true,
        "label": "Edit",
        "visible": true
      },
      {
        "id": 3,
        "enabled": true,
        "label": "View",
        "visible": true
      },
      {
        "id": 4,
        "enabled": true,
        "label": "Search",
        "visible": true
      },
      {
        "id": 5,
        "enabled": true,
        "label": "Project",
        "visible": true
      },
      {
        "id": 6,
        "enabled": true,
        "label": "Build",
        "visible": true
      },
      {
        "id": 7,
        "enabled": true,
        "label": "Run",
        "visible": true
      },
      {
        "id": 8,
        "enabled": true,
        "label": "XML",
        "visible": true
      },
      {
        "id": 9,
        "enabled": true,
        "label": "Tools",
        "visible": true
      },
      {
        "id": 10,
        "enabled": true,
        "label": "Window",
        "visible": true
      },
      {
        "id": 11,
        "enabled": true,
        "label": "Help",
        "visible": true
      }
  ]
}