$ git clone -n https://gitee.com/wenyuzifang/sdl12-compat.git /var/lib/mock/dist-an23-build-470208-74061/root/chroot_tmpdir/scmroot/sdl12-compat
Cloning into '/var/lib/mock/dist-an23-build-470208-74061/root/chroot_tmpdir/scmroot/sdl12-compat'...
$ git fetch origin abbb6cb19b0f5e25f20e63c9d065f8d68e2922b6:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/sdl12-compat
 * [new ref]         abbb6cb19b0f5e25f20e63c9d065f8d68e2922b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at abbb6cb Update code from upstream