[FIX] purchase: fixed test after the behavior changed in previous commit (e4dc50b)
[FIX] purchase: fixed test after the behavior changed in previous commit (e4dc50b)

sysadminmatmoz/OCB,storm-computers/odoo,storm-computers/odoo,optima-ict/odoo,hip-odoo/odoo,stephen144/odoo,sysadminmatmoz/OCB,ygol/odoo,ygol/odoo,microcom/odoo,laslabs/odoo,Elico-Corp/odoo_OCB,optima-ict/odoo,laslabs/odoo,syci/OCB,hip-odoo/odoo,laslabs/odoo,bplancher/odoo,dfang/odoo,bplancher/odoo,optima-ict/odoo,syci/OCB,bplancher/odoo,stephen144/odoo,microcom/odoo,bplancher/odoo,hip-odoo/odoo,stephen144/odoo,Elico-Corp/odoo_OCB,stephen144/odoo,bplancher/odoo,hip-odoo/odoo,laslabs/odoo,dfang/odoo,storm-computers/odoo,stephen144/odoo,syci/OCB,optima-ict/odoo,microcom/odoo,dfang/odoo,hip-odoo/odoo,microcom/odoo,Elico-Corp/odoo_OCB,ygol/odoo,ygol/odoo,ygol/odoo,laslabs/odoo,ygol/odoo,dfang/odoo,storm-computers/odoo,stephen144/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,bplancher/odoo,Elico-Corp/odoo_OCB,syci/OCB,dfang/odoo,microcom/odoo,syci/OCB,sysadminmatmoz/OCB,ygol/odoo,sysadminmatmoz/OCB,microcom/odoo,syci/OCB,sysadminmatmoz/OCB,sysadminmatmoz/OCB,Elico-Corp/odoo_OCB,dfang/odoo,optima-ict/odoo,laslabs/odoo,storm-computers/odoo,optima-ict/odoo,sysadminmatmoz/OCB,hip-odoo/odoo