diff -r eed95fe914c5 -r d52ca940c665 mercurial/revset.py
--- a/mercurial/revset.py	Wed Oct 08 02:51:16 2014 -0700
+++ b/mercurial/revset.py	Wed Oct 08 02:51:54 2014 -0700
@@ -1665,7 +1665,7 @@
     if not s:
         return baseset()
     ls = [int(r) for r in s.split('\0')]
-    s = subset.set()
+    s = subset
     return baseset([r for r in ls if r in s])
 
 # for internal use