gtk_menu_tool_button_set_menu does not work anymore in gtk3-3.11.6+, specifically the arrow button stays insensitive.

See sample program below.

Happens with:
gtk3-3.11.6-1.fc21
gtk3-3.11.7-1.fc21

Last working version is:
gtk3-3.11.6-5.fc21


Sample program:
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#include <gtk/gtk.h>

int
main (int   argc,
      char *argv[])
{
  GtkWidget *window;
  GtkWidget *menuitem;
  GtkWidget *menu;
  GtkToolItem *toolmenubutton;
  GtkWidget *toolbar;

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window), "Window");

  menuitem = gtk_menu_item_new_with_label ("Menu Item");

  menu = gtk_menu_new ();
  gtk_container_add (GTK_CONTAINER (menu), GTK_WIDGET (menuitem));

  toolmenubutton = gtk_menu_tool_button_new (NULL, "Menu");
  gtk_menu_tool_button_set_menu (GTK_MENU_TOOL_BUTTON(toolmenubutton), GTK_WIDGET (menu));

  toolbar = gtk_toolbar_new ();
  gtk_container_add (GTK_CONTAINER (toolbar), GTK_WIDGET (toolmenubutton));

  gtk_container_add (GTK_CONTAINER (window), GTK_WIDGET (toolbar));

  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);

  gtk_widget_show_all (window);
  gtk_widget_show_all (menu);

  gtk_main ();

  return 0;
}
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