[16.0][IMP] sale_force_invoiced: update untaxed_amount_to_invoice

Recompute untaxed_amount_to_invoice on the sale order lines when force_invoiced is changed.

sale_force_invoiced/models/sale_order.py

@@ -24,3 +24,14 @@ def _compute_invoice_status(self):
             lambda so: so.force_invoiced and so.state in ("sale", "done")
         ).update({"invoice_status": "invoiced"})
         return res
+
+
+class SaleOrderLine(models.Model):
+    _inherit = "sale.order.line"
+
+    @api.depends("order_id.force_invoiced")
+    def _compute_untaxed_amount_to_invoice(self):
+        force_invoiced = self.filtered(lambda x: x.order_id.force_invoiced)
+        force_invoiced.update({"untaxed_amount_to_invoice": 0.0})
+        not_forced = self - force_invoiced
+        return super(SaleOrderLine, not_forced)._compute_untaxed_amount_to_invoice()