Switch to side-by-side view

--- a/Allura/allura/tests/unit/factories.py
+++ b/Allura/allura/tests/unit/factories.py
@@ -54,7 +54,7 @@
 
 @flush_on_return
 def create_thread(discussion):
-    return Thread(discussion_id=discussion._id)
+    return Thread.new(discussion_id=discussion._id)
 
 
 @flush_on_return