There was another really bad incident today: https://www.githubstatus.com/incidents/zsg1lk7w13cf
> We have resolved a regression present when using merge queue with either squash merges or rebases. If you use merge queue in this configuration, some pull requests may have been merged incorrectly between 2026-04-23 16:05-20:43 UTC.
We had ~8 commits get entirely reverted on our default branch during this time. I've never seen a github incident quite this bad.
Similar here. Somewhat ironic that a tool that was supposed to be preventing merge conflicts was authoring completely mangled commits to our mainline branch.
Downtime is one thing. Silently reverting commits on your default branch is something else entirely.