$ git clone -n https://gitee.com/src-anolis-os/llvm.git /var/lib/mock/dist-an23-build-80229-40936/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-an23-build-80229-40936/root/chroot_tmpdir/scmroot/llvm'...
$ git reset --hard origin/a23
HEAD is now at 64bb6a4 add more target to build