Purpose
=======
When changing the type or the model of a property, the name is
re-generated, so the others record values are reset. If we change back
to the original model / type, the original property name is restored.
This is a super important behavior of the properties component and
it should be fully tested.
Reset the model and model description when changing the type.
Now that the form view is always in edit mode, even if we changed the
model / type of a properties, then save, we are able to restore the old
properties as long as we don't refresh the page.
Task-2965523
X-original-commit: 54ae82974b836a0badab3c4c767916a1daf88f76
Part-of: odoo/odoo#101487
std-odoo
9e2a3ff662