comments : fix missing expect statement

debexpo/controllers/index.py

@@ -67,6 +67,8 @@ class IndexController(BaseController):
         except AttributeError:
             # this mean that there is no comments rated
             c.best_comment=None
+        except IndexError :
+            c.best_comment=None
         try:
             c.last_comment = CommentsController.build_comment_render(
             meta.session.query(PackageComment).order_by(desc(PackageComment.time)).first())