Have a one2many in a form view. It displays its records with a kanban.
Add a record, now click on that new record.
Before this commit, there was not "Remove" button, preventing to effectively
remove a new (virtual at this point) record from the one2many.
Aftet this commit, there is a remove button that effectively removes the
record from the one2many.
closesodoo/odoo#97775
Signed-off-by: FrancoisGe <fge@odoo.com>