I worked around the error by monkey patching toWidgetValue in plone.app.z3cform.converters.AjaxSelectWidgetConverter But it should really be fixed where the (None, ) value is generated. Maybe @cekk has a better suggestion?
I worked around the error by monkey patching toWidgetValue in plone.app.z3cform.converters.AjaxSelectWidgetConverter But it should really be fixed where the (None, ) value is generated. Maybe @cekk has a better suggestion?