$ git clone -n https://gitee.com/opencloudos-stream/clang.git /var/lib/mock/dist-ocs23-build-166873-10280/root/chroot_tmpdir/scmroot/clang
Cloning into '/var/lib/mock/dist-ocs23-build-166873-10280/root/chroot_tmpdir/scmroot/clang'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/clang
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 07add7e !4 [Backport][LoongArch] Add the support for vector, compiler-rt and fix some bugs Merge pull request !4 from Ami-zhang/master