Switch to side-by-side view

--- a/Allura/allura/model/index.py
+++ b/Allura/allura/model/index.py
@@ -39,7 +39,7 @@
     Field('app_config_id', S.ObjectId()),
     Field('link', str),
     Field('url', str),
-    Index('link, project_id', 'app_config_id'))
+    Index('link', 'project_id', 'app_config_id'))
 
 # Class definitions
 class ArtifactReference(object):