In https://github.com/odoo/odoo/pull/110737, I didn't consider that
compute could be called on NewId record with `_origin`. Some compute
methods are badly refactored with the new signature of `_read_group`.
We use recordsets returning from `_read_group` to assign field value to
`self`. But if `self` contains `NewId` with `origin`, these records
don't represent `self`, it contains real record instead of the one with
NewId + origin. Then the assignations are done on records not in `self`
which may lead to generate traceback or write to other records during
an onchange.
Fix multiple compute to work correctly with NewId (origin set) record.
X-original-commit: bd22d0a5c479a72cdaf799309387e41ce692bb29
Part-of: odoo/odoo#132261
Rémy Voet (ryv)
4dc9e42a64