Switch to side-by-side view

--- a/ForgeWiki/forgewiki/wiki_main.py
+++ b/ForgeWiki/forgewiki/wiki_main.py
@@ -253,7 +253,7 @@
         # HACK: The TG request extension machinery will strip off the end of
         # a dotted wiki page name if it matches a known file extension. Here,
         # we reassemble the original page name.
-        if request.response_ext:
+        if request.response_ext and not remainder:
             pname += request.response_ext
         return PageController(pname), remainder