popup window of one2many field crash if it has context

Hi!
When you click in a row of a one2many field, the popup window doesn't appear, and the web client get the next error:
(If you are in editing mode, the popup window works well !!)

[28/Jan/2010:15:34:46] HTTP Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/CherryPy-3.1.2-py2.6.egg/cherrypy/_cprequest.py", line 606, in respond
    cherrypy.response.body = self.handler()
  File "/usr/local/lib/python2.6/dist-packages/CherryPy-3.1.2-py2.6.egg/cherrypy/_cpdispatch.py", line 25, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/usr/local/lib/python2.6/dist-packages/openerp_web-5.0.7-py2.6.egg/openerp/controllers/base.py", line 130, in wrapper
    return fn(*args, **kw)
  File "/usr/local/lib/python2.6/dist-packages/openerp_web-5.0.7-py2.6.egg/openerp/tools/expose.py", line 204, in func_wrapper
    res = func(*args, **kw)
  File "/usr/local/lib/python2.6/dist-packages/openerp_web-5.0.7-py2.6.egg/openerp/controllers/search.py", line 154, in eval_domain_and_context
    context = tools.expr_eval(context, ctx)
  File "/usr/local/lib/python2.6/dist-packages/openerp_web-5.0.7-py2.6.egg/openerp/tools/tools.py", line 43, in expr_eval
    return eval(string, context)
  File "<string>", line 1, in <module>
NameError: name 'alias' is not defined

I write an example:

=============================================
class test_parent(osv.osv):
    _name = 'test_parent'
    _description = 'Test Parent'

    _columns = {
        'name': fields.char('Parent Name', size=64, required=True, select=True),
        'alias': fields.char('alias', size=64),
        'child_ids': fields.one2many('test.child', 'parent_id', 'Childs'),
    }

test_parent()

class test_child(osv.osv):
    _name = 'test.child'
    _description = 'Test Child'

    _columns = {
        'name': fields.char('Child Name', size=64, required=True, select=True, translate=True),
        'alias': fields.char('alias', size=64),
        'parent_id': fields.many2one('test_parent', 'Parent'),
    }

test_child()

=============================================

        <record id="view_test_parent_form" model="ir.ui.view">
            <field name="name">test_parent.form</field>
            <field name="model">test_parent</field>
            <field name="type">form</field>
            <field name="arch" type="xml">
                <form string="Test Data">
                    <field name="name"/>
                    <newline/>
                    <field name="alias"/>
                    <newline/>
                    <field name="child_ids" context="{'alias':alias}"/>
                    <newline/>
                </form>
            </field>
        </record>

        <record id="action_test_parent_tree" model="ir.actions.act_window">
            <field name="name">Test parent</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">test_parent</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
        </record>
        <menuitem id="menu_test_parent_tree" action="action_test_parent_tree" parent="menu_test_root"/>