diff -r cde72a195f32 -r 3eceeede26e9 mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Mon Apr 17 23:53:19 2017 +0900
+++ b/mercurial/cmdutil.py	Sat Feb 25 19:28:16 2017 +0900
@@ -2154,6 +2154,7 @@
     if not spec:
         return templatekw.showgraphnode  # fast path for "{graphnode}"
 
+    spec = templater.unquotestring(spec)
     templ = formatter.gettemplater(ui, 'graphnode', spec)
     cache = {}
     if isinstance(displayer, changeset_templater):