[PATCH] histedit: select the lowest rev when looking for a root in a revset

[David Soria Parra]

# HG changeset patch
# User David Soria Parra <davidsp at fb.com>
# Date 1394751906 25200
#      Thu Mar 13 16:05:06 2014 -0700
# Node ID 882b4e7f82a01f62c1ae23e0700a2a23d35498d1
# Parent  c152e538b85b099ce20b51104b8b7dd3666aad7c
histedit: select the lowest rev when looking for a root in a revset

When we specify a revision or a revset we just get the last element from the
list. For revsets this can lead to unintended effects where you specify a
revset like only() but instead histedit selects the highest revision in the
set as root. Therefore we should always use the lowest revision number as
root.

diff --git a/hgext/histedit.py b/hgext/histedit.py
--- a/hgext/histedit.py
+++ b/hgext/histedit.py
@@ -565,7 +565,7 @@
                 remote = None
             root = findoutgoing(ui, repo, remote, force, opts)
         else:
-            root = revs[0]
+            root = 'min(%s)' % revs[0]
             root = scmutil.revsingle(repo, root).node()
 
         keep = opts.get('keep', False)