$ git clone -n https://gitee.com/zhuhong_bo/deepin-wallpapers.git /var/lib/mock/dist-an23-dde-build-521264-76084/root/chroot_tmpdir/scmroot/deepin-wallpapers
Cloning into '/var/lib/mock/dist-an23-dde-build-521264-76084/root/chroot_tmpdir/scmroot/deepin-wallpapers'...
$ git fetch origin 323faf21b8d3ce9221ccd8edfad651df74f8b5f9:KOJI_FETCH_HEAD
From https://gitee.com/zhuhong_bo/deepin-wallpapers
 * [new ref]         323faf21b8d3ce9221ccd8edfad651df74f8b5f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 323faf2 update to 1.8.4