diff -r 2605fc990725 -r ed9f40bc346f mercurial/hg.py
--- a/mercurial/hg.py	Sun Jan 29 12:59:21 2012 -0600
+++ b/mercurial/hg.py	Sun Jan 29 13:36:10 2012 -0600
@@ -289,7 +289,7 @@
             dircleanup = DirCleanup(dest)
 
         copy = False
-        if srcrepo.cancopy() and islocal(dest):
+        if srcrepo.cancopy() and islocal(dest) and not srcrepo.revs("secret()"):
             copy = not pull and not rev
 
         if copy: