# HG changeset patch
# User Lucas Moscovicz <lmoscovicz@fb.com>
# Date 1394828800 25200
# Node ID 74139960c302ac8ca58c19335f5fb115bcec0e24
# Parent  98d6c79540577a623f1ec04271ad8b3f9211c26e
getgraphlogrevs: return an empty baseset instead of a empty list

We aims at returning smartset only so that function higher in the stack can use
smartset feature.

diff -r 98d6c7954057 -r 74139960c302 mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Fri Mar 14 16:26:50 2014 -0700
+++ b/mercurial/cmdutil.py	Fri Mar 14 13:26:40 2014 -0700
@@ -1649,7 +1649,7 @@
             revs = revset.spanset(repo)
             revs.reverse()
     if not revs:
-        return [], None, None
+        return revset.baseset(), None, None
     expr, filematcher = _makegraphlogrevset(repo, pats, opts, revs)
     if possiblyunsorted:
         revs.sort(reverse=True)