The random ids of checklists and stars are preserved in the dom, which is needed for their readonly check features to work. However, it complicates testing. This systematically removes these ids in tests. It also removes the ids when they are not needed anymore (the node is not a checklist anymore for instance). closes odoo/odoo#83137 Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>