$ git clone -n https://gitee.com/src-opencloudos-rpms/clang.git /var/lib/mock/dist-oc9-build-100785-65027/root/chroot_tmpdir/scmroot/clang
Cloning into '/var/lib/mock/dist-oc9-build-100785-65027/root/chroot_tmpdir/scmroot/clang'...
$ git fetch origin 3ef57a2a333f8a4d5e9ba8fbd746321ad51f0aa9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/clang
 * [new ref]         3ef57a2a333f8a4d5e9ba8fbd746321ad51f0aa9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ef57a2 import clang-17.0.6-6.tl4.ap.1