checkbutton: Don't leak the action helper

diff --git a/gtk/gtkcheckbutton.c b/gtk/gtkcheckbutton.c
index 13aa7fb6cd1c2457aa67284c6380601976276df7..d7ba59c63ed556a8989bcb665b0e56cc79741c6a 100644 (file)
--- a/gtk/gtkcheckbutton.c
+++ b/gtk/gtkcheckbutton.c
@@ -111,6 +111,8 @@ gtk_check_button_dispose (GObject *object)
 {
   GtkCheckButtonPrivate *priv = gtk_check_button_get_instance_private (GTK_CHECK_BUTTON (object));
 
+  g_clear_object (&priv->action_helper);
+
   g_clear_pointer (&priv->indicator_widget, gtk_widget_unparent);
   g_clear_pointer (&priv->label_widget, gtk_widget_unparent);