When a column is created in the kanban view, the context of the window
action is fully given but it may contain default_{field_name} context
keys that are intended for the action model.
eg. on a product.product view we could have {default_type:'product'} in
the context, if we grouped by company_id and created a new company, we
would the context is propagated and we would try to set type='product'
on the company (which causes an error).
Without the change, the added test fails with:
default_* should be removed from context, actual: "true", expected: "false"
opw-1879064
closes#26676
Nicolas Lempereur
4cb585ab4f