When the mrp_routing_workcenter table is big, the domain [routing_line_ids, =, []] in the workcenter FormView can lead to significant slowness. This comes from the ORM having to retrieve the mrp_routing_workcenter records in the read. To avoid such issue, adds a new boolean computed field to check if a given workcenter has Operations. opw-2954461 closes odoo/odoo#99313 Signed-off-by: William Henrotin (whe) <whe@odoo.com>