It seems that there is no specific information provided regarding the Pull Request you want summarized for the Thanos project. To create an effective summary for an advanced developer, I would need details such as the purpose of the Pull Request, changes made, motivation behind the changes, any associated issues or features it addresses, the impact on the codebase, and any relevant discussions or comments.

If you can provide that context or any available details about the Pull Request, I’d be happy to help you craft an appropriate summary!