Issue
-----
When website is installed, the rendering of template uses a side effect
of the ORM cache (cache shared between sudoed env vs non-sudoed env) and
the fields prefetching feature to work correctly.
The `self.visibility` in (`_handle_visibility`, website/ir_ui_view.py)
is done in sudo mode, then it will fetch all prefetchable fields and put
them in the cache (that will be read in non-sudo mode in the render of
the template). Another example of issue related to this:
https://github.com/odoo/odoo/pull/83341.
Because of this, the fields of mixin `website.seo.metadata` were forced
to be prefetchable (the default for translate is to be not prefetchable
since https://github.com/odoo/odoo/pull/82896), which causes a useless
LEFT JOIN on "ir_translation" in most of business flow.
Fix
---
Remove the `prefetch=True` on mixin fields, and add a extra read to fill
the cache in case of website rendering. It also allows to read these
fields at the same time.
Part-of: odoo/odoo#85220
Rémy Voet (ryv)
d2b68d186e