subrepo: use working copy of .hgsub to filter status (issue2901)

mercurial/localrepo.py

@@ -1195,7 +1195,7 @@ class localrepository(repo.repository):
         if working: # we need to scan the working dir
             subrepos = []
             if '.hgsub' in self.dirstate:
-                subrepos = ctx1.substate.keys()
+                subrepos = ctx2.substate.keys()
             s = self.dirstate.status(match, subrepos, listignored,
                                      listclean, listunknown)
             cmp, modified, added, removed, deleted, unknown, ignored, clean = s

tests/test-mq-subrepo-svn.t

@@ -36,7 +36,6 @@ qnew on repo w/svn subrepo
   $ hg add .hgsub
   $ hg status -S -X '**/format'
   A .hgsub
-  ? sub/.svn/entries
   $ hg qnew -m0 0.diff
   committing subrepository sub
   $ cd sub

tests/test-subrepo-missing.t

@@ -19,6 +19,7 @@ delete .hgsub and revert it
   $ rm .hgsub
   $ hg revert .hgsub
   warning: subrepo spec file .hgsub not found
+  warning: subrepo spec file .hgsub not found
 
 delete .hgsubstate and revert it
 
@@ -30,8 +31,10 @@ delete .hgsub and update
   $ rm .hgsub
   $ hg up 0
   warning: subrepo spec file .hgsub not found
+  warning: subrepo spec file .hgsub not found
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg st
+  warning: subrepo spec file .hgsub not found
   ! .hgsub
   $ ls subrepo
   a
@@ -40,6 +43,7 @@ delete .hgsubstate and update
 
   $ hg up -C
   warning: subrepo spec file .hgsub not found
+  warning: subrepo spec file .hgsub not found
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ rm .hgsubstate
   $ hg up 0