diff -r ac70f8d5987c -r 8a62bae94425 mercurial/dispatch.py
--- a/mercurial/dispatch.py	Tue Jun 21 16:55:21 2011 +0300
+++ b/mercurial/dispatch.py	Tue Jun 21 17:08:21 2011 +0300
@@ -654,7 +654,7 @@
         return runcommand(lui, repo, cmd, fullargs, ui, options, d,
                           cmdpats, cmdoptions)
     finally:
-        if repo:
+        if repo != req.repo:
             repo.close()
 
 def _runcommand(ui, options, cmd, cmdfunc):