bzr: ERROR: bzrlib.errors.TooManyConcurrentRequests: The medium 'SmartSSHClientMedium(bzr+ssh://bzr@mserver.net/)' has reached its concurrent request limit. Be sure to finish_writing and finish_reading on the currently open request.

Traceback (most recent call last):
  File "D:/Program Files/Bazaar/plugins\explorer\lib\explorer.py", line 1237, in _file_edited_handler
  File "D:/Program Files/Bazaar/plugins\explorer\lib\explorer.py", line 1689, in do_refresh
  File "D:/Program Files/Bazaar/plugins\explorer\lib\explorer.py", line 667, in changed_view
  File "D:/Program Files/Bazaar/plugins\explorer\lib\wt_browser.py", line 65, in set_tree
  File "D:/Program Files/Bazaar/plugins\explorer\lib\wt_browser.py", line 469, in set_tree
  File "D:/Program Files/Bazaar/plugins\explorer\lib\wt_browser.py", line 691, in set_tree
  File "D:/Program Files/Bazaar/plugins\qbzr\lib\treewidget.py", line 1446, in set_tree
  File "bzrlib\decorators.pyo", line 140, in read_locked
  File "bzrlib\branch.pyo", line 970, in last_revision_info
  File "bzrlib\remote.pyo", line 2546, in _last_revision_info
  File "bzrlib\remote.pyo", line 55, in _call
  File "bzrlib\smart\client.pyo", line 132, in call
  File "bzrlib\smart\client.pyo", line 145, in call_expecting_body
  File "bzrlib\smart\client.pyo", line 79, in _call_and_read_response
  File "bzrlib\smart\client.pyo", line 45, in _send_request
  File "bzrlib\smart\client.pyo", line 115, in _construct_protocol
  File "bzrlib\smart\medium.pyo", line 711, in get_request
  File "bzrlib\smart\medium.pyo", line 969, in __init__
TooManyConcurrentRequests: The medium 'SmartSSHClientMedium(bzr+ssh://bzr@mserver.net/)' has reached its concurrent request limit. Be sure to finish_writing and finish_reading on the currently open request.

bzr 2.2.0 on python 2.6.4 (win32)
arguments: ['D:\\Program Files\\Bazaar\\bzrw.exe', 'explorer']
encoding: 'cp1252', fsenc: 'mbcs', lang: None
plugins:
  bzrtools             D:\Program Files\Bazaar\plugins\bzrtools [2.2.0]
  colo                 D:\Program Files\Bazaar\plugins\colo [0.1.0]
  explorer             D:\Program Files\Bazaar\plugins\explorer [1.1b1]
  extmerge             D:\Program Files\Bazaar\plugins\extmerge [unknown]
  fastimport           D:\Program Files\Bazaar\plugins\fastimport [0.9.0dev]
  launchpad            D:\Program Files\Bazaar\plugins\launchpad [2.2.0]
  loom                 D:\Program Files\Bazaar\plugins\loom [2.2.1dev]
  netrc_credential_store D:\Program Files\Bazaar\plugins\netrc_credential_store [2.2.0]
  news_merge           D:\Program Files\Bazaar\plugins\news_merge [2.2.0]
  pipeline             D:\Program Files\Bazaar\plugins\pipeline [unknown]
  qbzr                 D:\Program Files\Bazaar\plugins\qbzr [0.19.0]
  rewrite              D:\Program Files\Bazaar\plugins\rewrite [0.6.0]
  svn                  D:\Program Files\Bazaar\plugins\svn [1.0.3]
  upload               D:\Program Files\Bazaar\plugins\upload [1.0.0dev]
  xmloutput            D:\Program Files\Bazaar\plugins\xmloutput [0.8.6]