Broken CMS block preview when using identifier in pagebuilder

[rvr-robert]

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Description (*)

When adding a CMS block in a CMS page using the block identifier instead of the block ID, pagebuilder displays following error : "Block with ID: [block identifier] doesn't exist." instead of showing preview of the CMS block.

The block renders properly on front-end. There is no way to add a block with his identifier directly from pagebuilder. This issue would only happen if a developer executes a data patch that generates CMS content or directly edit the content in the database.

Bug

• <2838> Broken CMS block preview when using identifier in pagebuilder

Fixed Issues (if relevant)

1. magento/magento2#35070: Broken CMS block preview when using identifier in pagebuilder

Manual testing scenarios (*)

1. Create a CMS Block with any content
2. Create a CMS Page and add previously created CMS Block in the page with the PageBuilder Block component
3. Open cms_page table
4. Find the created page
5. Replace block_id value with the block identifier in the content cell. Example for a block with identifier contact-us-banner :
6. {{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="contact-us-banner" type_name="CMS Static Block"}}
7. Apply changes
8. Refresh pagebuilder page to see error

Checklist

• [ ] Pull request has a meaningful description of its purpose
• [ ] All commits are accompanied by meaningful commit messages
• [ ] All new or changed code is covered with unit/integration tests (if applicable)
• [ ] README.md files for modified modules are updated and included in the pull request if any README.md predefined sections require an update
• [ ] All automated tests passed successfully (all builds are green)

[rvr-robert]

@magento run all test

[magento-automated-testing[bot]]

Failed to run the builds. Please try to re-run them later.

[engcom-Hotel]

@magento run all tests

[magento-automated-testing[bot]]

The requested builds are added to the queue. You should be able to see them here within a few minutes. Please message the #magento-devops slack channel if they don't show in a reasonable amount of time and a representative will look into any issues.