GIO backend can't restore

My fault. The --gio backend can't restore correctly (at all, really), because it doesn't set internal state. I'm just going to go ahead and commit the one-line fix:

--- duplicity/backends/giobackend.py 2009-06-04 18:07:07 +0000
+++ duplicity/backends/giobackend.py 2009-08-02 00:05:16 +0000
@@ -119,6 +119,7 @@
         source_file = self.remote_file.get_child_for_display_name(filename)
         target_file = gio.File(path=local_path.name)
         self.copy_file(source_file, target_file)
+ local_path.setdata()

     def list(self):
         """List files in that directory"""