Fix Debian bug #494889 (fetching from static-http://... broken) Changeset 6605a03cbf87 which fixed issue965 (hg clone static-http does not work for empty repos) broke cloning of repos with old layout (without store) via static-http. This fix makes cloning from old-style repositories possible again, but will not allow cloning of empty old-style repositories as this can not be detected reliably.