cubicweb-forge #2897200 key error while sorting project [validation pending]

Traceback

File /usr/lib/python2.6/dist-packages/cubicweb/web/application.py, line 443, function core_handle
  result = controller.publish(rset=rset)
File /usr/lib/python2.6/dist-packages/cubicweb/web/views/basecontrollers.py, line 134, function publish
  rset=rset, view=view)
File /usr/lib/python2.6/dist-packages/cubicweb/cwvreg.py, line 394, function main_template
  res = obj.render(**kwargs)
File /usr/lib/python2.6/dist-packages/cubicweb/view.py, line 176, function render
  view_func(**context)
File /usr/lib/python2.6/dist-packages/cubicweb/web/views/basetemplates.py, line 147, function call
  view.render(w=w)
File /usr/lib/python2.6/dist-packages/cubicweb/view.py, line 176, function render
  view_func(**context)
File /usr/share/cubicweb/cubes/forge/views/project.py, line 116, function call
  reverse=True)
File /usr/lib/python2.6/dist-packages/cubicweb/rset.py, line 214, function sorted_rset
  key=lambda (i, e): keyfunc(e), reverse=reverse)
File /usr/lib/python2.6/dist-packages/cubicweb/rset.py, line 214, function <lambda>
  key=lambda (i, e): keyfunc(e), reverse=reverse)
File /usr/share/cubicweb/cubes/forge/views/project.py, line 115, function <lambda>
  self.cw_rset = self.cw_rset.sorted_rset(lambda e: e.cw_attr_cache['modification_date'],


 Error: &#39;modification_date&#39;

We should access the attribute. not the cache

priorityimportant
typebug
done in1.9.3
load0.250
load left0.000
closed by#c83a2f1bd3d4 [view] sort using orm accessors not cache (closes #2897200)
patch[view] sort using orm accessors not cache (closes #2897200) [applied]