$ git clone -n https://gitee.com/src-anolis-os/libmad.git /var/lib/mock/dist-an23-epao-build-397740-72287/root/chroot_tmpdir/scmroot/libmad
Cloning into '/var/lib/mock/dist-an23-epao-build-397740-72287/root/chroot_tmpdir/scmroot/libmad'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libmad
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9d0be8 init from upstream