$ git clone -n https://gitee.com/wency_cn/libmetalink.git /var/lib/mock/dist-an23-build-492533-74553/root/chroot_tmpdir/scmroot/libmetalink
Cloning into '/var/lib/mock/dist-an23-build-492533-74553/root/chroot_tmpdir/scmroot/libmetalink'...
$ git fetch origin c184a0bedfc864549788f1b784d0af7491b8d8a5:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libmetalink
 * [new ref]         c184a0bedfc864549788f1b784d0af7491b8d8a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c184a0b Update code from upstream