[libnma] Revert "cert-chooser-button: fix detection of selected item"

[Lubomir Rintel <lkundrak src gnome org>]

commit aec96815cf59e516e332cdffcf2d3a36972bb529
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Fri Sep 9 15:19:53 2022 +0200

    Revert "cert-chooser-button: fix detection of selected item"
    
    This pops up the chooser even if nobody pressed the button.
    This reverts commit 7d58bf8536779a7fddc4e827ecf83614124a14ff.

 src/nma-cert-chooser-button.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/nma-cert-chooser-button.c b/src/nma-cert-chooser-button.c
index 1e73a72a..863af63a 100644
--- a/src/nma-cert-chooser-button.c
+++ b/src/nma-cert-chooser-button.c
@@ -362,7 +362,7 @@ changed (GtkComboBox *combo_box, gpointer user_data)
        gchar *label;
        GckSlot *slot;
 
-       if (gtk_combo_box_get_active (combo_box) == -1)
+       if (gtk_combo_box_get_active (combo_box) == 0)
                return;
 
        gtk_combo_box_popdown (combo_box);
@@ -380,7 +380,7 @@ changed (GtkComboBox *combo_box, gpointer user_data)
 
        g_free (label);
        g_clear_object (&slot);
-       gtk_combo_box_set_active (combo_box, -1);
+       gtk_combo_box_set_active (combo_box, 0);
 }
 
 static gboolean