merge queue: embarking unstable (521be2b), #8065 and #7751 together

[mergify]

🎉 This pull request has been checked successfully and will be merged soon. 🎉

Branch unstable (521be2b), #8065 and #7751 are embarked together for merge.

This pull request has been created by Mergify to speculatively check the mergeability of #7751.
You don't need to do anything. Mergify will close this pull request automatically when it is complete.

Required conditions of queue default for merge:

• check-success=local-testnet-success
• check-success=test-suite-success

Required conditions to stay in the queue:

• #approved-reviews-by >= 1
  • Add experimental complete-blob-backfill flag #7751
• check-success=license/cla
  • Add experimental complete-blob-backfill flag #7751
• check-success=target-branch-check
  • Add experimental complete-blob-backfill flag #7751
• label!=do-not-merge
  • Add experimental complete-blob-backfill flag #7751

---
checking_base_sha: 962c20f8929d338b6e4818cda6584aead4936655
previous_failed_batches:
  - checked_pull_requests:
      - 7924
    draft_pr_number: 8072
pull_requests:
  - number: 7751
...

[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ michaelsproul
❌ mergify[bot]
_{You have signed the CLA already but the status is still pending? Let us recheck it.}