diff -r 1b3df5ef5949 -r aafeaba22826 mercurial/revset.py
--- a/mercurial/revset.py	Sun Jan 04 15:26:26 2015 -0500
+++ b/mercurial/revset.py	Sat Jan 03 10:25:08 2015 +0900
@@ -255,7 +255,7 @@
     x = repo[x].rev()
     if x == -1 and len(subset) == len(repo):
         return baseset([-1])
-    if len(subset) == len(repo) or x in subset:
+    if x in subset:
         return baseset([x])
     return baseset()