[gtk/gbsneto/filechooser-column-view] filechooserwidget: Connect to items-changed when changing model

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit eb23ee7da856ab2a708d7bfc10c264fba499f291
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Oct 10 23:18:00 2022 -0300

    filechooserwidget: Connect to items-changed when changing model
    
    Just like previous commit, we need to call list_items_changed()
    even if we change from single selection to multi selection or
    vice-versa.

 gtk/gtkfilechooserwidget.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 6eb8844024..7b3c33e48b 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -2526,6 +2526,11 @@ set_select_multiple (GtkFileChooserWidget *impl,
                     G_CALLBACK (list_selection_changed),
                     impl);
 
+  g_signal_connect (impl->selection_model,
+                    "items-changed",
+                    G_CALLBACK (list_items_changed),
+                    impl);
+
   gtk_column_view_set_model (GTK_COLUMN_VIEW (impl->browse_files_column_view),
                              GTK_SELECTION_MODEL (impl->selection_model));