loggerhead NoSuchRevision: KnitPackRepository exception

Loggerhead 1.18
Downloaded and is running from source dir:
$ ./serve-branches http://solfege.org/bzr/solfege.dev

An unexpected error occurred whileprocessing the request:

Visiting http://127.0.0.1:8080/revision/1 show the following error message.
NoSuchRevision: KnitPackRepository('readonly+http://solfege.org/bzr/.bzr/repository/') has no revision ('Arch-1:<email address hidden>%solfege--unstable--3.1--version-0',)

$ bzr log -r 1 http://solfege.org/bzr/solfege.dev
will show the log message, while "bzr log -r 1 -v http://solfege.org/bzr/solfege.dev will display an exception. See attached bzr.log
http://127.0.0.1:8080/revision/2 shows the expected page with log message and changed files, just as expected.

DEBUG:paste.httpserver.ThreadPool:Added task (0 tasks queued)
INFO:loggerhead.solfege.dev:built revision graph cache: 0.23225116729736328 secs
ERROR:loggerhead.solfege.dev: bzrlib.errors.NoSuchRevision: KnitPackRepository('readonly+file:///home/tom/src/solfege.dev/.bzr/repository/') has no revision ('Arch-1:<email address hidden>%solfege--unstable--3.1--version-0',)
Traceback (most recent call last):
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/apps/error.py", line 31, in __call__
    return self.application(environ, start_response)
  File "/usr/lib/pymodules/python2.6/paste/httpexceptions.py", line 633, in __call__
    return self.application(environ, start_response)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/main.py", line 124, in wrapped
    return app(environ, start_response)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/apps/transport.py", line 165, in __call__
    transport, self)(environ, start_response)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/apps/transport.py", line 128, in __call__
    return self.app_for_branch(b)(environ, start_response)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/apps/branch.py", line 172, in app
    return c(environ, start_response)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/controllers/__init__.py", line 93, in __call__
    vals.update(self.get_values(path, kwargs, headers))
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/controllers/revision_ui.py", line 73, in get_values
    file_changes = h.get_file_changes(change)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/history.py", line 716, in get_file_changes
    return self._file_change_cache.get_file_changes(entry)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/changecache.py", line 115, in get_file_changes
    changes = self.history.get_file_changes_uncached(entry)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/history.py", line 710, in get_file_changes_uncached
    return self.file_changes_for_revision_ids(old_revid, entry.revid)
  File "/home/tom/tmp/loggerhead-1.18/loggerhead/history.py", line 751, in file_changes_for_revision_ids
    old_tree, new_tree = repo.revision_trees([old_revid, new_revid])
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 2576, in revision_trees
    for inv in inventories:
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 2405, in _iter_inventories
    for text, revision_id in inv_xmls:
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 2430, in _iter_inventory_xmls
    raise errors.NoSuchRevision(self, record.key)
NoSuchRevision: KnitPackRepository('readonly+file:///home/tom/src/solfege.dev/.bzr/repository/') has no revision ('Arch-1:<email address hidden>%solfege--unstable--3.1--version-0',)
INFO:loggerhead.solfege.dev:Getting information for ErrorUI: 0.0033488273620605469 secs
INFO:loggerhead:127.0.0.1 - - [09/Mar/2011:23:31:47 +0200] "GET /revision/1 HTTP/1.1" 200 - "http://127.0.0.1:8080/changes/10?start_revid=30" "Mozilla/5.0 (X11; Linux x86_64; rv:2.0b13pre) Gecko/20110303 Firefox/4.0b13pre"
INFO:loggerhead.solfege.dev:Rendering ErrorUI: 0.04170680046081543 secs, 2523 bytes