Error on closing client on fresh windows install

#!python

• • Mercurial version (4.1). TortoiseHg version (4.1)
    
  • Command:
    
  • CWD: C:\Windows\system32
    
  • Encoding: cp1252
    
  • Extensions loaded:
    
  • Python version: 2.7.10 (default, May 23 2015, 09:44:00) [MSC v.1500 64 bit (AMD64)]
    
  • Windows version: sys.getwindowsversion(major=6, minor=2, build=9200, platform=2, service_pack=''
    
  • Processor architecture: x64
    
  • Qt-4.8.7 PyQt-4.11.4 QScintilla-2.9
    Traceback (most recent call last):
    File "tortoisehg\hgqt\workbench.pyo", line 1124, in closeEvent
    File "tortoisehg\hgqt\reporegistry.pyo", line 409, in close
    File "tortoisehg\hgqt\reporegistry.pyo", line 273, in _saveSettings
    File "tortoisehg\hgqt\reporegistry.pyo", line 363, in _writeExpandedState
    File "tortoisehg\hgqt\repotreemodel.pyo", line 341, in itemPath
    File "tortoisehg\hgqt\repotreeitem.pyo", line 85, in itempath
    AttributeError: 'RepoTreeModel' object has no attribute 'childs'