[gdm] Revert "session: don't call gdm_session_defaults_changed from setup"

[Ray Strode <halfline src gnome org>]

commit f4f7b6914ad2b9b0b7da036dde4028751eb49eb7
Author: Ray Strode <rstrode redhat com>
Date:   Wed Feb 14 16:07:15 2018 -0500

    Revert "session: don't call gdm_session_defaults_changed from setup"
    
    This reverts commit 572a19324b75cc1f1b2db4908e2d7c9f06e4e335.
    
    It turns out we need this call for more than just the session type,
    we also need to it to inform the greeter about the default session
    to use.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=793609

 daemon/gdm-session.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/daemon/gdm-session.c b/daemon/gdm-session.c
index 610ebcd..19d26c9 100644
--- a/daemon/gdm-session.c
+++ b/daemon/gdm-session.c
@@ -2295,6 +2295,7 @@ gdm_session_setup (GdmSession *self,
         update_session_type (self);
 
         initialize (self, service_name, NULL, NULL);
+        gdm_session_defaults_changed (self);
 }
 
 
@@ -2313,6 +2314,7 @@ gdm_session_setup_for_user (GdmSession *self,
 
         self->priv->is_program_session = FALSE;
         initialize (self, service_name, self->priv->selected_user, NULL);
+        gdm_session_defaults_changed (self);
 }
 
 void