$ git clone -n https://gitee.com/src-opencloudos-rpms/llvm.git /var/lib/mock/dist-oc9-build-186664-80323/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-oc9-build-186664-80323/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin 606760838041941464fa86f4f344ad8fbbb38223:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/llvm
 * [new ref]         606760838041941464fa86f4f344ad8fbbb38223 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6067608 import llvm-17.0.6-12.tl4