duplicate and _inherits

[Stéphane Bidoul (Acsone)]

Hello,

This one could also be titled "duplicating a project also duplicates timesheets", but I'm reporting it in framework as it is linked to the behaviour of copy and _inherits (with s).

How to reproduce:
- 6.0 with demo data, modules project and analytic
- create a project named test1
- add an analytic entry on account test1 (say, a timesheet)
- duplicate analytic account test1 to test2, the timesheets are not duplicated, which is correct
- duplicate project test1 to test3 -> the timesheets of test1 are duplicated on test3 which is incorrect

In this case, project.project _inherits account.analytic.account and both objects override the copy method. The problem is that when you duplicate the project, the overridden copy method on analytic account (which set default['lines_ids'] to []) is never called, and therefore all the analytic lines are duplicated.

I assume similar problem can occur in other areas using _inherits.

Best regards,

-sbi