It appears that the provided content is not accessible or is missing details. To help me create a summary for the Pull Request (PR) for the Thanos project, please provide the relevant information such as:

1. The main changes or feature of the PR.
2. The problem it addresses or the motivation behind it.
3. Any specific implementation details.
4. Relevant code snippets or links to the files affected.
5. Impact on existing functionality, including any breaking changes.
6. Testing details or additional notes.

With that information, I can generate a comprehensive summary for advanced developers.