[tracker/binary-log-2] Set the iface to zero after unreferencing

[Philip Van Hoof <pvanhoof src gnome org>]

commit 1f0aa6b7d6bec4513e3beb2004650fd364391cad
Author: Philip Van Hoof <philip codeminded be>
Date:   Fri Jan 8 17:04:53 2010 +0100

    Set the iface to zero after unreferencing
    
    It's okay to squash this one with previous commit for example

 src/libtracker-db/tracker-db-manager.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-db/tracker-db-manager.c b/src/libtracker-db/tracker-db-manager.c
index 1cbb48b..41933c3 100644
--- a/src/libtracker-db/tracker-db-manager.c
+++ b/src/libtracker-db/tracker-db-manager.c
@@ -1326,8 +1326,10 @@ tracker_db_manager_init (TrackerDBManagerFlags  flags,
 			}
 
 			for (i = 1; i < G_N_ELEMENTS (dbs); i++) {
-				if (dbs[i].iface)
+				if (dbs[i].iface) {
 					g_object_unref (dbs[i].iface);
+					dbs[i].iface = NULL;
+				}
 			}
 
 			db_recreate_all ();