[gnome-shell] loginDialog: fix reactivity of first user in user list

[Ray Strode <halfline src gnome org>]

commit d04340c675f7b6245acb9b4eb736403d15e2ecd0
Author: Ray Strode <rstrode redhat com>
Date:   Thu Jan 22 14:00:01 2015 -0500

    loginDialog: fix reactivity of first user in user list
    
    After the login banner is shown and hidden, the first user
    in the user list becomes non-reactive.  This is because the
    banner is given an opacity of 0, but still allocated.
    
    This commit fixes that by hiding the banner explicitly.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=743370

 js/gdm/loginDialog.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index b7eff68..9dd984c 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -709,6 +709,7 @@ const LoginDialog = new Lang.Class({
     },
 
     _fadeInBannerView: function() {
+        this._bannerView.show();
         Tweener.addTween(this._bannerView,
                          { opacity: 255,
                            time: _FADE_ANIMATION_TIME,
@@ -718,6 +719,7 @@ const LoginDialog = new Lang.Class({
     _hideBannerView: function() {
         Tweener.removeTweens(this._bannerView);
         this._bannerView.opacity = 0;
+        this._bannerView.hide();
     },
 
     _updateLogoTexture: function(cache, file) {