Changing the environment in method create() to force bin_size=False
looks harmless, but it actually breaks many tests, in particular in
module account. The reason is that company_dependent fields are read at
the wrong place in the cache. And this is because `env._cache_key` can
be polluted with old data.
Make sure that `_cache_key` is cleared when resetting all the lazy
properties on the environment. Only the change in res_user.py makes it
work, but let's not tempt the devil.
Side note: I hate caches.
Part-of: odoo/odoo#160708
Rémy Voet (ryv)
a0bf434960