$ git clone -n https://gitee.com/wenyuzifang/tuna.git /var/lib/mock/dist-an23-build-470567-74061/root/chroot_tmpdir/scmroot/tuna
Cloning into '/var/lib/mock/dist-an23-build-470567-74061/root/chroot_tmpdir/scmroot/tuna'...
$ git fetch origin 8f23ebf59753b9b4e10c8d3fb9dcc699d559f662:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tuna
 * [new ref]         8f23ebf59753b9b4e10c8d3fb9dcc699d559f662 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f23ebf Update code from upstream