$ git clone -n https://src.fedoraproject.org/rpms/llvm-bolt.git /var/lib/mock/f39-build-1871242-42698/root/chroot_tmpdir/scmroot/llvm-bolt
Cloning into '/var/lib/mock/f39-build-1871242-42698/root/chroot_tmpdir/scmroot/llvm-bolt'...
$ git fetch origin 483590785d4ae28e936de368d4a70ac98b9a136a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/llvm-bolt
 * [new ref]         483590785d4ae28e936de368d4a70ac98b9a136a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4835907 Update to LLVM 17.0.6