Breakage with invalid SSL certificates

When the SSL certifical for HTTPS is invalid, bzr exits without giving the user, the choice to accept it.

--------
bzr: ERROR: pycurl.error: (60, 'server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt')

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 800, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 758, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.4/site-packages/bzrlib/commands.py", line 492, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.4/site-packages/bzrlib/builtins.py", line 866, in run
    br_from = Branch.open(from_location)
  File "/usr/lib/python2.4/site-packages/bzrlib/branch.py", line 127, in open
    possible_transports=possible_transports)
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 542, in open
    return BzrDir.open_from_transport(t, _unsupported=_unsupported)
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 579, in open_from_transport
    redirected)
  File "/usr/lib/python2.4/site-packages/bzrlib/lazy_import.py", line 116, in __call__
    return obj(*args, **kwargs)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/__init__.py", line 1538, in do_catching_redirections
    return action(transport)
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 555, in find_format
    return transport, BzrDirFormat.find_format(
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 1260, in find_format
    return format.probe_transport(transport)
  File "/usr/lib/python2.4/site-packages/bzrlib/bzrdir.py", line 1270, in probe_transport
    format_string = transport.get(".bzr/branch-format").read()
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/http/__init__.py", line 177, in get
    code, response_file = self._get(relpath, None)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/http/_pycurl.py", line 147, in _get
    return self._get_full(relpath)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/http/_pycurl.py", line 182, in _get_full
    self._curl_perform(curl, header)
  File "/usr/lib/python2.4/site-packages/bzrlib/transport/http/_pycurl.py", line 268, in _curl_perform
    curl.perform()
error: (60, 'server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt')

bzr 0.91.0candidate2 on python 2.4.4.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'clone', 'https://code.whytheluckystiff.net/svn/camping']

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