[FIX] fields: reset attributes for columns that override fields
[FIX] fields: reset attributes for columns that override fields

In particular, reset `compute`, `inverse`, `search` and `related`.  This is
necessary because all models implicitly inherits from model 'base', and the
latter defines `display_name` as a computed field.

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