--- a/mercurial/match.py	Sat Jan 17 14:22:21 2015 +0900
+++ b/mercurial/match.py	Sat Jan 17 12:39:44 2015 +0900
@@ -72,7 +72,6 @@
         self._cwd = cwd
         self._files = [] # exact files and roots of patterns
         self._anypats = bool(include or exclude)
-        self._ctx = ctx
         self._always = False
         self._pathrestricted = bool(include or exclude or patterns)