$ git clone -n https://gitee.com/wenyuzifang/tuna.git /var/lib/mock/dist-an23-build-466183-73955/root/chroot_tmpdir/scmroot/tuna
Cloning into '/var/lib/mock/dist-an23-build-466183-73955/root/chroot_tmpdir/scmroot/tuna'...
$ git fetch origin 7b6372df7b7bb548d7bce3cd836c6f204ff4c9d7:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tuna
 * [new ref]         7b6372df7b7bb548d7bce3cd836c6f204ff4c9d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b6372d Update code from upstream