$ git clone -n https://git.cclinux.org/stage/rpms/llvm.git /mnt/compose/mock/dist-circle9-build-106437-57054/root/chroot_tmpdir/scmroot/llvm
Cloning into '/mnt/compose/mock/dist-circle9-build-106437-57054/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin 975bd54a67048d25549170f1e5d3354384ad89b6:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/llvm
 * [new ref]         975bd54a67048d25549170f1e5d3354384ad89b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 975bd54 import llvm-16.0.6-4.el9