[gtk] font button: notify when ::font-features changes

[Matthias Clasen <matthiasc src gnome org>]

commit 6ff76a483c11a53891cc1a0e439bef98f42f514d
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Mar 27 14:47:36 2018 -0400

    font button: notify when ::font-features changes
    
    Lack of notification was causing the font-features to not
    show up in the inspector.

 gtk/gtkfontbutton.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtkfontbutton.c b/gtk/gtkfontbutton.c
index 480da183ed..1046b396ce 100644
--- a/gtk/gtkfontbutton.c
+++ b/gtk/gtkfontbutton.c
@@ -1006,6 +1006,7 @@ response_cb (GtkDialog *dialog,
 
   g_object_notify (G_OBJECT (font_button), "font");
   g_object_notify (G_OBJECT (font_button), "font-desc");
+  g_object_notify (G_OBJECT (font_button), "font-features");
 
   g_object_thaw_notify (object);