--- a/mercurial/context.py	Sun May 13 14:04:04 2012 +0200
+++ b/mercurial/context.py	Sun May 13 14:04:06 2012 +0200
@@ -186,6 +186,8 @@
         return self._changeset[4]
     def branch(self):
         return encoding.tolocal(self._changeset[5].get("branch"))
+    def closesbranch(self):
+        return 'close' in self._changeset[5]
     def extra(self):
         return self._changeset[5]
     def tags(self):
@@ -895,6 +897,8 @@
         return self._clean
     def branch(self):
         return encoding.tolocal(self._extra['branch'])
+    def closesbranch(self):
+        return 'close' in self._extra
     def extra(self):
         return self._extra