Comment 4 for bug 471301

Here, too (Windows XP SP2, bzr 2.0.3, latest revno 28 of historycache. "bzr log -n N" for any N except 1 crashes. In fact, it crashes even if I remove the history-cache-* settings from branch.conf; only removing the plugins/historycache directory stops the crashes.

Here's my traceback from .bzr.log, in case it helps:

Sat 2010-01-23 11:38:04 +0200
0.125 bzr arguments: [u'log', u'--short', u'-n1']
0.156 looking for plugins in C:/Documents and Settings/Zaretzky/Application Data/bazaar/2.0/plugins
0.156 looking for plugins in D:/usr/Bazaar/plugins
0.531 encoding stdout as sys.stdout encoding 'cp1252'
2.281 return code 0

Sat 2010-01-23 11:38:08 +0200
0.110 bzr arguments: [u'log', u'--short', u'-n2']
0.125 looking for plugins in C:/Documents and Settings/Zaretzky/Application Data/bazaar/2.0/plugins
0.125 looking for plugins in D:/usr/Bazaar/plugins
0.500 encoding stdout as sys.stdout encoding 'cp1252'
0.844 failed to open D:/gnu/bzr/emacs/trunk/.bzr/branch/historycache/graph-cache: [Errno 2] No such file or directory: u'D:/gnu/bzr/emacs/trunk/.bzr/branch/historycache/graph-cache'
8.735 load of revno-cache (0 entries) took 0.00 secs
8.735 Traceback (most recent call last):
  File "bzrlib\commands.pyo", line 842, in exception_to_return_code
  File "bzrlib\commands.pyo", line 1037, in run_bzr
  File "bzrlib\commands.pyo", line 654, in run_argv_aliases
  File "D:/usr/Bazaar/plugins\historycache\__init__.py", line 225, in run
  File "bzrlib\commands.pyo", line 1052, in ignore_pipe
  File "bzrlib\builtins.pyo", line 2355, in run
  File "bzrlib\log.pyo", line 330, in show
  File "bzrlib\log.pyo", line 354, in _show_body
  File "bzrlib\log.pyo", line 389, in iter_log_revisions
  File "bzrlib\log.pyo", line 871, in _make_revision_objects
  File "bzrlib\log.pyo", line 896, in _make_batch_filter
  File "bzrlib\log.pyo", line 725, in _convert
  File "bzrlib\log.pyo", line 648, in _graph_view_revisions
  File "D:/usr/Bazaar/plugins\historycache\__init__.py", line 175, in historycache_iter_msr_method
  File "D:/usr/Bazaar/plugins\historycache\revnocache.py", line 149, in update
TypeError: 'bzrlib._known_graph_pyx._MergeSortNode' object is not iterable

8.750 couldn't find apport bug-reporting library: No module named apport
8.782 Traceback (most recent call last):
  File "bzrlib\plugin.pyo", line 407, in _get__version__
  File "bzrlib\lazy_import.pyo", line 125, in __call__
  File "bzrlib\__init__.pyo", line 112, in _format_version_tuple
ValueError: version_info (1, 1, 0, 'pre', 0) not valid

8.797 return code 4