[FIX] product: fix default values for pricelist
[FIX] product: fix default values for pricelist

Bad migration to new api... All values was resetted ith 'forumla'.
Why not formula as default value directly in product.pricelist.item ???

hip-odoo/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo,dfang/odoo,dfang/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,hip-odoo/odoo,dfang/odoo,dfang/odoo,hip-odoo/odoo,ygol/odoo,ygol/odoo