[FIX] hr_timesheet: allow duplication of project
[FIX] hr_timesheet: allow duplication of project

When duplicating a project, a command [(6, _, ids)] may be generated.

This fail with the commit aa8a39fc4f because all comodels records with
id not in `ids` will have their inverse field unset.

But eg. in the case of copy, this would trigger an error because this
would be done to an empty recordset and unexpectedly trigger an error.

opw-807655
closes #22525

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo