From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   7844878ab467..a71b1d2a385d  main       -> origin/main
Switched to branch 'main'
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  (use "git pull" to update your local branch)
HEAD is now at a71b1d2a385d [ADT] Refactor Bitset to Be More Constexpr-Usable (#172062)