[FIX] mail: To: me, To-do display messages `to_read`
[FIX] mail: To: me, To-do display messages `to_read`

These menus are supposed to display the message
to: me / to do that matches the `To Read` filter.

The filter was correctly displayed in the search
view, but the records displayed were not the
result of the search, because the call to
`message_read`, in `message_fetch` was done
too early, with the wrong domain.

This is because `searchview.has_defaults`
& `searchview.ready` have disapeared in saas-6,
with the refactoring of the search view.

opw-659137

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