This commit fixes an issue where the quickcreate button was missing from the kanban view when it was grouped by a non many2one field and contained no record yet (so that no column is shown yet). Steps to reproduce: -Go to a kanban view on a model with no record -Group by as scalar value (eg: Description) ->The "New" button disappears OPW-3459808 closes odoo/odoo#143793 X-original-commit: 112ba1cb64b5170fdefd267de8e765f87b444b56 Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com> Signed-off-by: Julien Carion (juca) <juca@odoo.com>