$ git clone -n https://gitee.com/opencloudos-stream/clang.git /var/lib/mock/dist-ocs23-loongarch64-build-165139-10199/root/chroot_tmpdir/scmroot/clang
Cloning into '/var/lib/mock/dist-ocs23-loongarch64-build-165139-10199/root/chroot_tmpdir/scmroot/clang'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/clang
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f97aaed !2 【软件升级】 [clang] 可升级至 [17.0.6] Merge pull request !2 from luochenglcs/master