[gtk/wip/baedert/for-master] merge into root()/map() commit

[Timm Bäder <baedert src gnome org>]

commit 9992aa42e73efc3a24efc6448d54e1af8e9e835e
Author: Timm Bäder <mail baedert org>
Date:   Sat Sep 28 10:53:51 2019 +0200

    merge into root()/map() commit

 gtk/gtkmodelbutton.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkmodelbutton.c b/gtk/gtkmodelbutton.c
index 4747aad19c..1d5fba92d2 100644
--- a/gtk/gtkmodelbutton.c
+++ b/gtk/gtkmodelbutton.c
@@ -788,14 +788,18 @@ static void
 gtk_model_button_root (GtkWidget *widget)
 {
   GtkModelButton *self = GTK_MODEL_BUTTON (widget);
-  GtkRoot *root = gtk_widget_get_root (widget);
+  GtkRoot *root;
   GtkApplication *app;
   const char *action_name;
   GVariant *action_target;
 
+  GTK_WIDGET_CLASS (gtk_model_button_parent_class)->root (widget);
+
   if (!self->accel)
     return;
 
+  root = gtk_widget_get_root (widget);
+
   if (!GTK_IS_WINDOW (root))
     return;