Empty repositories broken on trunk

[ecarter]

[4965] breaks completely empty repositories.

$ svnlook youngest testdata/svn 
0
$ ./trac-develop-bin/trac-admin testdata/trac resync
Resyncing repository history... 
(this will take a time proportional to the number of your changesets)
Command failed: ('No such revision 1', 160006)

Also, every page I visit has:

SubversionException: ('No such revision 1', 160006)

From the logs:

2007-03-12 17:14:39,177 Trac[main] DEBUG: Dispatching <Request "GET /login">
2007-03-12 17:14:39,181 Trac[cache] INFO: Upgraded cache metadata (youngest_rev=)
2007-03-12 17:14:39,181 Trac[cache] INFO: Check for sync [None] vs. cached [0]
2007-03-12 17:14:39,182 Trac[cache] INFO: Trying to sync revision [1]
2007-03-12 17:14:39,182 Trac[main] ERROR: ('No such revision 1', 160006)
Traceback (most recent call last):
  File "/home/eli/workflow/trac-develop/trac/web/main.py", line 429, in dispatch_request
    dispatcher.dispatch(req)
  File "/home/eli/workflow/trac-develop/trac/web/main.py", line 192, in dispatch
    chosen_handler = self._pre_process_request(req, chosen_handler)
  File "/home/eli/workflow/trac-develop/trac/web/main.py", line 300, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/api.py", line 74, in pre_process_request
    self.get_repository(req.authname) # triggers a sync if applicable
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/api.py", line 104, in get_repository
    repos = self._connector.get_repository(rtype, rdir, authname)
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/svn_fs.py", line 279, in get_repository
    crepos = CachedRepository(self.env.get_db_cnx(), repos, None, self.log)
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/cache.py", line 42, in __init__
    self.sync()
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/cache.py", line 150, in sync
    cset = self.repos.get_changeset(next_youngest)
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/svn_fs.py", line 460, in get_changeset
    self.fs_ptr, self.pool)
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/svn_fs.py", line 801, in __init__
    message = self._get_prop(core.SVN_PROP_REVISION_LOG)
  File "/home/eli/workflow/trac-develop/trac/versioncontrol/svn_fs.py", line 908, in _get_prop
    return fs.revision_prop(self.fs_ptr, self.rev, name, self.pool())
  File "/usr/lib/python2.4/site-packages/libsvn/fs.py", line 570, in svn_fs_revision_prop
    return apply(_fs.svn_fs_revision_prop, args)
SubversionException: ('No such revision 1', 160006)

[cboos]

Fixed by r4995 (trunk) and r4996 (0.10-stable), thanks for the report!