The `use_create_lots` field was missing in the parent view after this https://github.com/odoo/odoo/pull/137031/commits/ecc6a3c0776501ca79604af21fd5515f74f6b7e8#diff-7a1e0a179b7361b04b4bb165dbfc18fabd2fc972ff190fbf21144db03f9b86b1L139 , causing a silent failure in the `options` condition for allowing users to create new lots/serial numbers. As a result, users were unable to add serial numbers during receipt creation because the condition `options="{'create': [('parent.use_create_lots', '=', True)]}"` was never met.

Steps to reproduce the error:
1. Create a new product with lot/serial number tracking.
2. Create a receipt for that product.
3. Try to add serial numbers to the receipt.

The expected behavior is to be able to add serial numbers, but users were blocked from doing so due to the missing field.
To resolve this, the `use_create_lots` field has been added to the parent view, ensuring that the condition for allowing lot creation works as expected.

opw-4150626



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Versions
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- saas-17.4+

Steps
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1. Set website to display prices tax included;
2. have a discount code program (e.g. '10pc' on runbot);
3. add a deliverable product to cart;
4. apply discount code;
5. proceed to delivery options page.

Issue
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Endless refresh loop.

Cause
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Commit 5ba6723578af fixed an issue with updating the cart summary after a discount reward change. Part of this process is reloading the page if the rewards are no longer in sync. For this to work, it relies on the `data-reward-type` attribute being present in the summary, which isn't the case when prices are set to display tax included.

The reason for this is `xpath` only adding the attribute to the first child[^1] of `website_sale_cart_summary_line_price`, which is the `price_subtotal`[^2], but misses the second element displaying the `price_total`, hence it lacks the `data-reward-type` attribute.

Solution
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Add an `xpath` node to add the attribute on the second element as well.

Also update the JavaScript added in 5ba6723578af to not reload if no `[data-reward-type=discount]` elements were found, to prevent an endless refresh cycle for clients who haven't updated their templates yet.

opw-4284046

[^1]: https://github.com/odoo/odoo/blob/72addc749879/addons/website_sale_loyalty/views/website_sale_templates.xml#L172-L176
[^2]: https://github.com/odoo/odoo/blob/72addc749879/addons/website_sale/views/templates.xml#L2341-L2349