The field 'display_name' is automatically added to the list of
fields to fetch when fetching a record. Before this rev., its
value was also sent alongside the fields in the view for onchange
RPCs. It shouldn't: only the fields in the view should be sent.
It produced a weird bug in the res.partner form view: open a
contact (company), add a sub-contact, save -> the display_name of
the contact was then '' (and 'Contacts' was displayed in the
breadcrumbs instead of the display_name of the opened contact).
This is because 'display_name' was sent to the onchange, which
returned '' as value (because of another bug python side). So as
it's value changed, when saving, the new display_name was sent to
the server (even if this field was actually readonly).
Before this rev., we also always fetched 'display_name' when
fetching list of records (read or search_read). This wasn't a bug
per se, but it might be a computed field, and it isn't necessary,
so we stop fetching it in that case if it isn't in the view (as
it was done in saas-15, before the new views).
Aaron Bohy
d93726f9ac