bundlerepo: bundle repos should be non-publishing (issue3266)

Bundle repo contains both the bundle content and the content of the repository
used as a base. This create bugs with phases exchange because the "remote"
repository claim to contains changeset it does not. The easiest way to fix this
bug is to ensure a bundle repo as non publishing. This way changeset will be
seen in the same phase than locally.

This patch does not alter in which phase bundle revision are seen. For now they
are seen as if an old client had add them on the remote: They inherit their
phase from parent whatever the parent is. This is to be fixed in a later patch

mercurial/bundlerepo.py

@@ -168,6 +168,7 b' class bundlerepository(localrepo.localre'
             self._tempparent = tempfile.mkdtemp()
             localrepo.instance(ui, self._tempparent, 1)
             localrepo.localrepository.__init__(self, ui, self._tempparent)
+        self.ui.setconfig('phases', 'publish', False)
 
         if path:
             self._url = 'bundle:' + util.expandpath(path) + '+' + bundlename

tests/test-phases-exchange.t

@@ -465,6 +465,38 b' initial setup'
   o  0 public a-A - 054250a37db4
   
 
+Pulling from bundle does not alter phases of changeset not present in the bundle
+
+  $ hg bundle  --base 1 -r 6 -r 3 ../partial-bundle.hg
+  5 changesets found
+  $ hg pull ../partial-bundle.hg
+  pulling from ../partial-bundle.hg
+  searching for changes
+  no changes found
+  $ hgph
+  @  10 draft a-H - 967b449fbc94
+  |
+  | o  9 draft a-G - 3e27b6f1eee1
+  | |
+  | o  8 draft a-F - b740e3e5c05d
+  | |
+  | o  7 draft a-E - e9f537e46dea
+  | |
+  +---o  6 public n-B - 145e75495359
+  | |
+  o |  5 public n-A - d6bcb4f74035
+  | |
+  o |  4 public b-A - f54f1bb90ff3
+  | |
+  | o  3 public a-D - b555f63b6063
+  | |
+  | o  2 public a-C - 54acac6f23ab
+  |/
+  o  1 public a-B - 548a3d25dbf0
+  |
+  o  0 public a-A - 054250a37db4
+  
+
 Pushing to Publish=False (unknown changeset)
 
   $ hg push ../mu -r b740e3e5c05d # a-F