[gtk/matthiasc/for-master] headerbar: Don't clean up other widget children

[Matthias Clasen <matthiasc src gnome org>]

commit 495b9caf63326b5fb0b458e4f501b07dd15ccbcb
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 11 14:25:57 2020 -0400

    headerbar: Don't clean up other widget children
    
    The parent of the title_widget is the center box,
    it needs to call gtk_widget_unparent on it.

 gtk/gtkheaderbar.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkheaderbar.c b/gtk/gtkheaderbar.c
index 25fb6d7e75..eee669e2c8 100644
--- a/gtk/gtkheaderbar.c
+++ b/gtk/gtkheaderbar.c
@@ -318,7 +318,8 @@ gtk_header_bar_set_title_widget (GtkHeaderBar *bar,
   if (priv->title_widget == title_widget)
     return;
 
-  g_clear_pointer (&priv->title_widget, gtk_widget_unparent);
+  gtk_center_box_set_center_widget (GTK_CENTER_BOX (priv->center_box), NULL);
+  priv->title_widget = NULL;
 
   if (title_widget != NULL)
     {