$ git clone -n https://gitee.com/wenyuzifang/librsvg2.git /var/lib/mock/dist-an23-build-450449-73460/root/chroot_tmpdir/scmroot/librsvg2
Cloning into '/var/lib/mock/dist-an23-build-450449-73460/root/chroot_tmpdir/scmroot/librsvg2'...
$ git fetch origin 5bb7161240999dd5748a725470096f8b8e1aa2ad:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/librsvg2
 * [new ref]         5bb7161240999dd5748a725470096f8b8e1aa2ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5bb7161 Update code from upstream