Switch to side-by-side view

--- a/Allura/allura/model/repo.py
+++ b/Allura/allura/model/repo.py
@@ -270,7 +270,7 @@
     def paged_diffs(self, start=0, end=None):
         di = DiffInfoDoc.m.get(_id=self._id)
         if di is None:
-            return Object(added=[], removed=[], changed=[], copied=[])
+            return Object(added=[], removed=[], changed=[], copied=[], total=0)
         added = []
         removed = []
         changed = []