# HG changeset patch
# User Benoit Boissinot <benoit.boissinot@ens-lyon.org>
# Date 1129695084 25200
# Node ID db571bcaa35d572aef44e3bef6c1f768a77b20ac
# Parent  34cb3957d875ce3341c0ec4b86f016a60aded698
allow empty values for url so we can have /?tip



diff --git a/mercurial/hgweb.py b/mercurial/hgweb.py
--- a/mercurial/hgweb.py
+++ b/mercurial/hgweb.py
@@ -67,7 +67,7 @@ class hgrequest:
         self.inp = inp or sys.stdin
         self.out = out or sys.stdout
         self.env = env or os.environ
-        self.form = cgi.parse(self.inp, self.env)
+        self.form = cgi.parse(self.inp, self.env, keep_blank_values=1)
 
     def write(self, *things):
         for thing in things: