--- a/hgext/fetch.py	Mon Sep 22 14:47:21 2008 +0200
+++ b/hgext/fetch.py	Wed Sep 24 13:22:11 2008 +0200
@@ -33,8 +33,9 @@
         opts['date'] = util.parsedate(date)
 
     parent, p2 = repo.dirstate.parents()
-    branch = repo[parent].branch()
-    if parent != repo[branch].node():
+    branch = repo.dirstate.branch()
+    branchnode = repo.branchtags().get(branch)
+    if parent != branchnode:
         raise util.Abort(_('working dir not at branch tip '
                            '(use "hg update" to check out branch tip)'))