notebook: don't forget to reset the style after setting show-tabs

This fixes a regression after commit
b04f4c536aeab4281a9f0117e67accae19d691b9

diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index 94a078c09a10f7b688d19f3f88d8313791111d0f..e4194dfd6a8166357d2de8e6f9dd0adb39e2faa4 100644 (file)
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -7149,6 +7149,7 @@ gtk_notebook_set_show_tabs (GtkNotebook *notebook,
         gtk_widget_set_child_visible (priv->action_widget[i], show_tabs);
     }
 
+  gtk_widget_reset_style (GTK_WIDGET (notebook));
   gtk_widget_queue_resize (GTK_WIDGET (notebook));
 
   g_object_notify (G_OBJECT (notebook), "show-tabs");