treemanifests: fix local clone

When doing a local clone with treemanifests, the .hg/store/meta/
directory currently does not get copied. To fix it, all we need to do
is to add it to the list of directories to copy.

mercurial/store.py

@@ -290,7 +290,7 b' def _calcmode(vfs):'
         mode = None
     return mode
 
-_data = ('data 00manifest.d 00manifest.i 00changelog.d 00changelog.i'
+_data = ('data meta 00manifest.d 00manifest.i 00changelog.d 00changelog.i'
          ' phaseroots obsstore')
 
 class basicstore(object):
@@ -504,7 +504,7 b' class fncachestore(basicstore):'
                     raise
 
     def copylist(self):
-        d = ('data dh fncache phaseroots obsstore'
+        d = ('data meta dh fncache phaseroots obsstore'
              ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i')
         return (['requires', '00changelog.i'] +
                 ['store/' + f for f in d.split()])

tests/test-treemanifest.t

@@ -513,3 +513,56 b' Verify passes.'
   checking files
   8 files, 3 changesets, 10 total revisions
   $ cd ..
+
+Create clones using old repo formats to use in later tests
+  $ hg clone --config format.usestore=False \
+  >   --config experimental.changegroup3=True \
+  >   http://localhost:$HGPORT2 deeprepo-basicstore
+  requesting all changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 3 changesets with 10 changes to 8 files
+  updating to branch default
+  8 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ grep store deeprepo-basicstore/.hg/requires
+  [1]
+  $ hg clone --config format.usefncache=False \
+  >   --config experimental.changegroup3=True \
+  >   http://localhost:$HGPORT2 deeprepo-encodedstore
+  requesting all changes
+  adding changesets
+  adding manifests
+  adding file changes
+  added 3 changesets with 10 changes to 8 files
+  updating to branch default
+  8 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ grep fncache deeprepo-encodedstore/.hg/requires
+  [1]
+
+Local clone with basicstore
+  $ hg clone -U deeprepo-basicstore local-clone-basicstore
+  $ hg -R local-clone-basicstore verify
+  checking changesets
+  checking manifests
+  crosschecking files in changesets and manifests
+  checking files
+  8 files, 3 changesets, 10 total revisions
+
+Local clone with encodedstore
+  $ hg clone -U deeprepo-encodedstore local-clone-encodedstore
+  $ hg -R local-clone-encodedstore verify
+  checking changesets
+  checking manifests
+  crosschecking files in changesets and manifests
+  checking files
+  8 files, 3 changesets, 10 total revisions
+
+Local clone with fncachestore
+  $ hg clone -U deeprepo local-clone-fncachestore
+  $ hg -R local-clone-fncachestore verify
+  checking changesets
+  checking manifests
+  crosschecking files in changesets and manifests
+  checking files
+  8 files, 3 changesets, 10 total revisions