$ git clone -n https://gitee.com/src-opencloudos-rpms/llvm.git /var/lib/mock/dist-oc9-build-116918-67959/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-oc9-build-116918-67959/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin f56f0f418bec010fa9c82fadf7b324bd3b59a40b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/llvm
 * [new ref]         f56f0f418bec010fa9c82fadf7b324bd3b59a40b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f56f0f4 import llvm-17.0.6-8.tl4