invalid cast from 'GtkButton' to 'GtkBox'

on adding a page to a GtkNotebook

(soffice): Gtk-CRITICAL **: gtk_box_remove: assertion 'GTK_IS_BOX (box)' failed

diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index cf2a7a931096b693562ed88f8625a1f5da9ab177..57b87f5f2ebcf029e21d2d6330873a948efdb6a8 100644 (file)
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -5652,8 +5652,8 @@ gtk_notebook_menu_item_recreate (GtkNotebook *notebook,
   GtkNotebookPage *page = list->data;
   GtkWidget *menu_item = gtk_widget_get_parent (page->menu_label);
 
-  gtk_box_remove (GTK_BOX (menu_item), page->menu_label);
-  gtk_widget_unparent (menu_item);
+  gtk_button_set_child (GTK_BUTTON (menu_item), NULL);
+  gtk_box_remove (GTK_BOX (notebook->menu_box), menu_item);
   gtk_notebook_menu_item_create (notebook, page);
 }