Wrong path to ckeditor files

SchoolTool 2.6.3, that switched to CKEditor, exposed a packaging bug in zope.html

2014-04-12 19:46:24,719 http://localhost:7080/schoolyears/1/groups/teachers/calendar/add.html
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/zope/publisher/publish.py", line 135, in publish
    response.setResult(result)
  File "/usr/lib/python2.7/dist-packages/zope/publisher/http.py", line 776, in setResult
    r, headers = self._implicitResult(r)
  File "/usr/lib/python2.7/dist-packages/zc/resourcelibrary/publication.py", line 114, in _implicitResult
    html = self._generateIncludes(resource_libraries)
  File "/usr/lib/python2.7/dist-packages/zc/resourcelibrary/publication.py", line 158, in _generateIncludes
    url = library_resources[file_name]()
  File "/usr/lib/python2.7/dist-packages/zope/browserresource/directory.py", line 70, in __getitem__
    raise KeyError(name)
KeyError: u'3.6.1/ckeditor/ckeditor.js'

but it is installed to
/usr/share/pyshared/zope/html/ckeditor/3.3.1/ckeditor