Jairo Llopis
448521df64
Setting the value of a one2many field (`rec.line_ids = ...`) converts the new recordset to a list of commands, and passes it to `write`. Currently the list of commands is like: `[(5,), (0, 0, vals), (1, id, vals), (4, id), ...]`. Notice that the command `(5,)` is inappropriate here: it deletes all the existing lines of the record. Reintroducing the same lines with `(4, id)` commands crashes, because the corresponding `id` is no longer in database. The fix serializes the recordset as a list of commands like `[(6, 0, ids), (0, 0, vals), (1, id, vals), ...]`. Only the lines that are not kept will be deleted in this case.
Odoo
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