During the uninstall step of the registry, we perform a commit right
after the uninstallation of all module data, this commit is performed
right before the creation of a new registry, this means that said commit
will call `flush_env` and thus `recompute` on an environment that is
based on a stale Registry (memory and database are unsynchronized).
This means that during this specific moment, there's a chance that the
recompute function may have to fetch some fields it depends on to
perform its computations if said fields are not in cache, this in turn
means that it will try to prefetch fields that are potentially no longer
in the database, making the registry crash and preventing the uninstall.
This is what happened with multiple if not all `payment_*` modules, the
main module `payment` depends on a `ir.module.module` record, most
notably the `color` field of the `payment.acquirer` model which depends
on the `state` field which in turn depends on the
`ir.module.module.state` field.
This meant that uninstalling a module such as `payment_paypal` triggered
a recompute of `payment.acquirer.color` during uninstall, and to perform
that computation we need several `payment.acquirer` fields to be fetched
from cache or the database. If in cache, the uninstall would go through
without a hitch, if not in cache, we would fetch the required fields
from the database but we'd also attempt to prefetch the fields
introduced by `payment_paypal` that had just been deleted from the
database!
To avoid this, the `_module_uninstall_data` method of `ir.model.data`
will henceforth guarantee that `ir.model.fields` that are to-be-deleted
will have their prefetch set to False, meaning only existing fields will
be fetched from the database during the uninstall of extending modules.
Fixes#60424
opw-2372598
closesodoo/odoo#62247
X-original-commit: 7bffd2df0d5d7eff841cdf7ba7cb6ea84a5c5c49
Signed-off-by: Raphael Collet (rco) <rco@openerp.com>
Co-authored-by: Raphael Collet <rco@odoo.com>
