From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   98727f6a8f85..fc1f3f397e2a  main       -> origin/main
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warning: There are too many unreachable loose objects; run 'git prune' to remove them.

Switched to branch 'main'
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HEAD is now at fc1f3f397e2a Revert "[libcxx] Define `_LIBCPP_HAS_C8RTOMB_MBRTOC8` to true if compiling with clang" (#165268)