[gnome-contacts] ContactEditor: clear also unset internal contact

[Erick Pérez Castellanos <erickpc src gnome org>]

commit fd0d3fe365b8833d2c0af6beca16d50645702588
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Sun Aug 10 16:58:22 2014 -0400

    ContactEditor: clear also unset internal contact

 src/contacts-contact-editor.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/contacts-contact-editor.vala b/src/contacts-contact-editor.vala
index c01adaf..8dfaa3e 100644
--- a/src/contacts-contact-editor.vala
+++ b/src/contacts-contact-editor.vala
@@ -880,6 +880,7 @@ public class Contacts.ContactEditor : Grid {
     has_notes_row = false;
 
     writable_personas.clear ();
+    contact = null;
   }
 
   public HashMap<string, PropertyData?> properties_changed () {