[FIX] website_sale: keep pricelist when creating new SO
[FIX] website_sale: keep pricelist when creating new SO

The call to onchange_partner_id resets the pricelist. Now, SO is created
with correct values right away.

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