# 
# 
# patch "tracvc/mtn/backend.py"
#  from [17f6738d2440707aa7abaaaae1a5016054c11955]
#    to [ccfe47b5aa6ff822fbddcffc71b74fe2a4bd8d4a]
# 
============================================================
--- tracvc/mtn/backend.py	17f6738d2440707aa7abaaaae1a5016054c11955
+++ tracvc/mtn/backend.py	ccfe47b5aa6ff822fbddcffc71b74fe2a4bd8d4a
@@ -450,31 +450,38 @@ class MonotoneChangeset(Changeset):
         self.revpropspec = revpropspec or {}
 
     def get_changes(self):
+        """Generator that produces a tuple for every change in the changeset
+
+        The tuple will contain `(path, kind, change, base_path, base_rev)`,
+        where `change` can be one of Changeset.ADD, Changeset.COPY,
+        Changeset.DELETE, Changeset.EDIT or Changeset.MOVE,
+        and `kind` is one of Node.FILE or Node.DIRECTORY.
+        The `path` is the targeted path for the `change` (which is
+        the ''deleted'' path  for a DELETE change).
+        The `base_path` and `base_rev` are the source path and rev for the
+        action (`None` and `-1` in the case of an ADD change).
         """
-        Generator that produces a (path, kind, change, base_path, base_rev)
-        tuple for every change in the changeset, where change can be one of
-        Changeset.ADD, Changeset.COPY, Changeset.DELETE, Changeset.EDIT or
-        Changeset.MOVE, and kind is one of Node.FILE or Node.DIRECTORY.
-        """
+        # We do not closely implement that api, for example, we don't
+        # know the kind of a deleted or renamed node.
         for cs in self.mtn.changesets(self.rev):
             oldrev = cs.oldrev
 
             # deletions
             for oldpath in cs.deleted:
-                yield oldpath, None, 'delete', oldpath, oldrev
+                yield oldpath, None, Changeset.DELETE, oldpath, oldrev
 
             # pure renames
             for (path, oldpath) in cs.renamed.iteritems():
-                yield path, None, 'move', oldpath, oldrev
+                yield path, None, Changeset.MOVE, oldpath, oldrev
 
             # additions
             for (path, kind) in cs.added.iteritems():
-                yield path, kind, 'add', None, oldrev
+                yield path, kind, Changeset.ADD, None, -1
 
             # patches
             for path in cs.patched:
                 oldpath = util.get_oldpath(path, cs.renamed)
-                yield path, 'file', 'edit', oldpath, oldrev
+                yield path, Node.FILE, Changeset.EDIT, oldpath, oldrev
             
     def get_properties(self):
         """Generator that provides additional metadata for this changeset.