This fix is NOT fully working in the current 7.0 stable release! 
After applying the patch every user gets this error message after the login and after clicking on a menu item like "project" or "sales":

OpenERP Server Error
Client Traceback (most recent call last):
  File "/opt/openerp/11069-lightbase/web/addons/web/http.py", line 195, in dispatch
    response["result"] = method(self, **self.params)
  File "/opt/openerp/11069-lightbase/web/addons/web/controllers/main.py", line 1078, in call_kw
    return self._call_kw(req, model, method, args, kwargs)
  File "/opt/openerp/11069-lightbase/web/addons/web/controllers/main.py", line 1070, in _call_kw
    return getattr(req.session.model(model), method)(*args, **kwargs)
  File "/opt/openerp/11069-lightbase/web/addons/web/session.py", line 43, in proxy
    result = self.proxy.execute_kw(self.session._db, self.session._uid, self.session._password, self.model, method, args, kw)
  File "/opt/openerp/11069-lightbase/web/addons/web/session.py", line 31, in proxy_method
    result = self.session.send(self.service_name, method, *args)
  File "/opt/openerp/11069-lightbase/web/addons/web/session.py", line 104, in send
    raise xmlrpclib.Fault(openerp.tools.ustr(e), formatted_info)


Server Traceback (most recent call last):
  File "/opt/openerp/11069-lightbase/web/addons/web/session.py", line 90, in send
    return openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/opt/openerp/11069-lightbase/server/openerp/netsvc.py", line 289, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/opt/openerp/11069-lightbase/server/openerp/service/web_services.py", line 614, in dispatch
    res = fn(db, uid, *params)
  File "/opt/openerp/11069-lightbase/server/openerp/osv/osv.py", line 169, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/opt/openerp/11069-lightbase/server/openerp/osv/osv.py", line 123, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/opt/openerp/11069-lightbase/server/openerp/osv/osv.py", line 179, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/opt/openerp/11069-lightbase/server/openerp/osv/osv.py", line 166, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/opt/openerp/11069-lightbase/addons/share/wizard/share_wizard.py", line 73, in has_share
    return self.has_group(cr, uid, module='share', group_xml_id='group_share_user', context=context)
  File "/opt/openerp/11069-lightbase/addons/share/wizard/share_wizard.py", line 70, in has_group
    return group_id in self.pool.get('res.users').read(cr, uid, uid, ['groups_id'], context=context)['groups_id']
  File "/opt/openerp/11069-lightbase/server/openerp/addons/base/res/res_users.py", line 793, in read
    res = super(users_view, self).read(cr, uid, ids, fields, context=context, load=load)
  File "/opt/openerp/11069-lightbase/server/openerp/addons/base/res/res_users.py", line 268, in read
    result = super(res_users, self).read(cr, uid, ids, fields=fields, context=context, load=load)
  File "/opt/openerp/11069-lightbase/server/openerp/osv/orm.py", line 3606, in read
    result = self._read_flat(cr, user, select, fields, context, load)
  File "/opt/openerp/11069-lightbase/server/openerp/osv/orm.py", line 3666, in _read_flat
    if context.get('lang'):
AttributeError: 'int' object has no attribute 'get'



This error message shows only up once.