[FIX] OPW 575909: orm: fix order_by for special 'id' field not respecting order direction
[FIX] OPW 575909: orm: fix order_by for special 'id' field not respecting order direction

  backport of v6.1 revid: xal@openerp.com-20120924140007-rnsw4nw8owzqx4ia

xrg/openerp-server,xrg/openerp-server