Example of steps: - Install `web_studio` - add a `many2many` field from res.partner - create a record - add a line by selecting a partner In this case `_parseServerValue` will crash https://github.com/odoo/odoo/blob/29d55e44035b6e6c6aba6fa4a114d555a766b7c7/addons/web/static/src/legacy/js/views/abstract_model.js#L101-L111 Because `field.selection` is undefined this code is getting field from this line https://github.com/odoo/odoo/blob/d3ef5891e8e92636dd61b8f2b7186ad139e8b42a/addons/mail/static/src/web/fields/kanban_activity/kanban_activity.js#L14 Instead of specifying `selection: []` in the fieldDependencies this pr fixes this issue generally and prevents these kind of fixes https://github.com/odoo/odoo/pull/125052 opw-3671417 closes odoo/odoo#150445 X-original-commit: 139e107a58ff4be4f03a57df07806355cb7d6236 Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>