--- a/mercurial/templater.py	Thu Nov 29 08:49:21 2012 -0500
+++ b/mercurial/templater.py	Mon Nov 12 14:05:39 2012 -0800
@@ -184,6 +184,7 @@
     for i in d:
         if isinstance(i, dict):
             lm.update(i)
+            lm['originalnode'] = mapping.get('node')
             yield runtemplate(context, lm, ctmpl)
         else:
             # v is not an iterable of dicts, this happen when 'key'