PURPOSE
Previously when the 'SAVE & NEW' button was pressed in the 'create and
edit...' menu of the many2many_tags widget was pressed, the modal window
would close and the button would act exactly like the 'SAVE & CLOSE'
button. This was due to the fact that whenever a new record was created
and added to the field, it would reset the many2one field it uses for
display, which would destroy the edit modal.
This commit fixes that by not notifying the underlying many2one field of
any change until the modal is closed by the user. This has the
disadvantage that tags display, if visible behind the modal 'shade',
will not be updated until the modal is closed, but restores the
functionality of the save&new button. It also adds a test for this
behaviour
task-2070454
closesodoo/odoo#37114
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>
Samuel Degueldre
16f23e8246