diff -r 936530f8d32c -r 45be3a9debe6 hooks/__init__.py
--- a/hooks/__init__.py	Wed Jul 27 14:22:32 2011 +0200
+++ b/hooks/__init__.py	Wed Jul 27 14:24:40 2011 +0200
@@ -57,7 +57,7 @@
                     or not repo.config.source_enabled(source)
                     or not source.config['synchronize']):
                     continue
-                session = repo.internal_session()
+                session = repo.internal_session(safe=True)
                 try:
                     stats = source.pull_data(session)
                     if stats.get('created'):