fix bug in project_roles
fix bug in project_roles

thierrymarianne/valuenetwork,FreedomCoop/valuenetwork,thierrymarianne/valuenetwork,FreedomCoop/valuenetwork,valnet/valuenetwork,FreedomCoop/valuenetwork,simontegg/valuenetwork,thierrymarianne/valuenetwork,FreedomCoop/valuenetwork,django-rea/nrp,django-rea/nrp,simontegg/valuenetwork,thierrymarianne/valuenetwork,simontegg/valuenetwork,simontegg/valuenetwork,django-rea/nrp,valnet/valuenetwork,valnet/valuenetwork,valnet/valuenetwork,django-rea/nrp