$ git clone -n https://gitee.com/mgb01105731/lld.git /var/lib/mock/dist-an23.1-devel-build-365380-71289/root/chroot_tmpdir/scmroot/lld
Cloning into '/var/lib/mock/dist-an23.1-devel-build-365380-71289/root/chroot_tmpdir/scmroot/lld'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/lld
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88e85d0 rebuild 16.0.6