--- a/tests/test-subrepo.t	Fri Jan 28 02:57:59 2011 +0100
+++ b/tests/test-subrepo.t	Mon Jan 31 13:33:41 2011 +0100
@@ -675,3 +675,31 @@
   committing subrepository subrepo-1
   committing subrepository subrepo-2
   $ hg st subrepo-2/file
+
+Check hg update --clean
+  $ cd $TESTTMP/sub/t
+  $ rm -r t/t.orig
+  $ hg status -S --all
+  C .hgsub
+  C .hgsubstate
+  C a
+  C s/.hgsub
+  C s/.hgsubstate
+  C s/a
+  C s/ss/a
+  C t/t
+  $ echo c1 > s/a
+  $ cd s
+  $ echo c1 > b
+  $ echo c1 > c
+  $ hg add b
+  $ cd ..
+  $ hg status -S
+  M s/a
+  A s/b
+  ? s/c
+  $ hg update -C
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg status -S
+  ? s/b
+  ? s/c