cubicweb-forge #344818 Quick AJAX edit fails on tickets [rejected]

After double clicking on cost and submitting the form. I get to http://application/list objects are unhashable

Here is what happens server site

2009-07-28 15:47:54 - (cubicweb.web) INFO: publish "/json" (form params: ['pageid', 'fname', 'arg'])
2009-07-28 15:47:54 - (cubicweb.web) WARNING: param subvid mis-formatted
2009-07-28 15:47:54 - (cubicweb.web) WARNING: param rql mis-formatted
2009-07-28 15:47:54 - (cubicweb.web) ERROR: unexpected error while validating form
Traceback (most recent call last):
File "/usr/lib/python2.5/site-packages/cubicweb/web/views/basecontrollers.py", line 199, in _validate_form
  ctrl.publish(None)
File "/usr/lib/python2.5/site-packages/cubicweb/web/views/editcontroller.py", line 39, in publish
  return callback()
File "/usr/lib/python2.5/site-packages/cubicweb/web/views/editcontroller.py", line 153, in _action_apply
  self._default_publish()
File "/usr/lib/python2.5/site-packages/cubicweb/web/views/editcontroller.py", line 59, in _default_publish
  eid = self.edit_entity(formparams)
File "/usr/lib/python2.5/site-packages/cubicweb/web/views/editcontroller.py", line 84, in edit_entity
  entity = self.vreg.etype_class(etype)(self.req, None, None)
File "/var/lib/python-support/python2.5/logilab/common/decorators.py", line 62, in cache_wrapper3
  return _cache[args]
TypeError: list objects are unhashable
prioritynormal
typebug
done in1.1.0
load1.000
load left0.000
closed by<not specified>