$ git clone -n https://gitee.com/mgb01105731/llvm_1.git /var/lib/mock/dist-an23.5-build-547084-87606/root/chroot_tmpdir/scmroot/llvm_1
Cloning into '/var/lib/mock/dist-an23.5-build-547084-87606/root/chroot_tmpdir/scmroot/llvm_1'...
$ git reset --hard origin/a23
HEAD is now at 3276c02 add libcxx to llvm