[gnome-shell] Show the session list when needed

[Ray Strode <halfline src gnome org>]

commit a7bb6a27819ac2a8eac40888543a581c12385d8a
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 26 23:50:29 2013 -0500

    Show the session list when needed
    
    Some of the conditions for showing the user list were not
    properly inverted, causing the session list to be hidden
    when it shouldn't be and shown when it shouldn't be.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694784

 js/gdm/loginDialog.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index ee366e4..cd8dff5 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -753,7 +753,7 @@ const LoginDialog = new Lang.Class({
                            time: _FADE_ANIMATION_TIME,
                            transition: 'easeOutQuad' });
 
-        if (!this._user || (this._user.is_logged_in() && this._verifyingUser))
+        if ((this._user && !this._user.is_logged_in()) || this._verifyingUser)
             this._sessionList.actor.show();
 
         this._promptEntry.grab_key_focus();