From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   d4706e17f55d..1ff2953f5e39  main       -> origin/main
Switched to branch 'main'
Your branch is behind 'origin/main' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at 1ff2953f5e39 Revert "Handle step-in over a Darwin "branch island". (#138330)" (#138569)