$ git clone -n https://gitee.com/src-anolis-dde/f32-backgrounds.git /var/lib/mock/dist-an8.9-dde-build-284638-64758/root/chroot_tmpdir/scmroot/f32-backgrounds
Cloning into '/var/lib/mock/dist-an8.9-dde-build-284638-64758/root/chroot_tmpdir/scmroot/f32-backgrounds'...
$ git fetch origin a8:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-dde/f32-backgrounds
 * [new branch]      a8         -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a98cb91 Rebuild for Anolis 8.9