# HG changeset patch
# User Patrick Mezard <pmezard@gmail.com>
# Date 1227648197 -3600
# Node ID f1944e74e83c0a542b01f0b3d27c0d52dcf0852f
# Parent  07cb58b8c843f09fc32ee1da2974fb52d057a146
manifest: fix _search() corner-case

It failed when searching the empty string in the null revision.

diff -r 07cb58b8c843 -r f1944e74e83c mercurial/manifest.py
--- a/mercurial/manifest.py	Mon Nov 24 17:16:39 2008 -0800
+++ b/mercurial/manifest.py	Tue Nov 25 22:23:17 2008 +0100
@@ -63,6 +63,8 @@
             while i < lenm and m[i] != c:
                 i += 1
             return i
+        if not s:
+            return (lo, lo)
         lenm = len(m)
         if not hi:
             hi = lenm