Bug 1191632 - Use correct 'new' revision for hg.m.o link generation

Previously the link target was pointing at a different revision to that
displayed in the link text.

ui/partials/perf/revisiondescribe.html

@@ -4,7 +4,7 @@
     <span>{{originalResultSet.comments}}</span>
   </li>
   <li>
-    <strong>New</strong> - <a href="{{newProject.getRevisionHref(originalRevision)}}">{{newRevision}}</a> ({{newProject.name}}) - {{newResultSet.author}} -
+    <strong>New</strong> - <a href="{{newProject.getRevisionHref(newRevision)}}">{{newRevision}}</a> ({{newProject.name}}) - {{newResultSet.author}} -
     <span>{{newResultSet.comments}}</span>
   </li>
 </ul>