Product List widget on 404 leads to Fatal Error

[VladyslavSikailo]

Preconditions and environment

• Magento version 2.4.7-p3

Steps to reproduce

• Install sample data
• Open backoffice, go to Content->Pages
• Find "404 Not Found", click Edit
• Edit Content
• Add pagebuilder "Products" block, Save
• Open frontend {magento_url}/foo/bar/baz//hello

Expected result

• 404 Not found page is rendered
• Products block is rendered

Actual result

• Fatal Error is shown TypeError: Unsupported operand types: string + int in /var/www/html/vendor/magento/framework/Data/Collection.php:245

Additional information

• look how collection is built in vendor/magento/module-catalog-widget/Block/Product/ProductsList.php
• $this->getRequest()->getParam($this->getData('page_var_name'), 1) returns "hello"

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @VladyslavSikailo. Thank you for your report.
To speed up processing of this issue, make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce.

• For more details, review the Magento Contributor Assistant documentation.
• Add a comment to assign the issue: @magento I am working on this
• To learn more about issue processing workflow, refer to the Code Contributions.

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