[FIX] mail: avoid useless rpc on message rendering
[FIX] mail: avoid useless rpc on message rendering

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