$ git clone -n https://gitee.com/wenyuzifang/sdl12-compat.git /var/lib/mock/dist-an23-build-497601-74608/root/chroot_tmpdir/scmroot/sdl12-compat
Cloning into '/var/lib/mock/dist-an23-build-497601-74608/root/chroot_tmpdir/scmroot/sdl12-compat'...
$ git fetch origin db427e23dfbfc924763154db098eafa5e6d8709c:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/sdl12-compat
 * [new ref]         db427e23dfbfc924763154db098eafa5e6d8709c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db427e2 Update code from upstream