Set total milestone and us points to None if backlog_module is disabled
Set total milestone and us points to None if backlog_module is disabled

Rademade/taiga-back,dayatz/taiga-back,taigaio/taiga-back,Rademade/taiga-back,Rademade/taiga-back,xdevelsistemas/taiga-back-community,taigaio/taiga-back,dayatz/taiga-back,dayatz/taiga-back,Rademade/taiga-back,Rademade/taiga-back,taigaio/taiga-back,xdevelsistemas/taiga-back-community,xdevelsistemas/taiga-back-community