$ git clone -n https://gitee.com/src-opencloudos-rpms/llvm.git /var/lib/mock/dist-oc9-build-72919-48378/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-oc9-build-72919-48378/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin 8b08e169c1bcbc0708c08b3a9dafd7cf7a79e222:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/llvm
 * [new ref]         8b08e169c1bcbc0708c08b3a9dafd7cf7a79e222 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b08e16 import llvm-17.0.6-2.tl4