$ git clone -n https://gitee.com/wency_cn/librsvg2.git /var/lib/mock/dist-an23-build-494030-74584/root/chroot_tmpdir/scmroot/librsvg2
Cloning into '/var/lib/mock/dist-an23-build-494030-74584/root/chroot_tmpdir/scmroot/librsvg2'...
$ git fetch origin 91ae9723851bc6f3bfea428958652aa6b5576de8:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/librsvg2
 * [new ref]         91ae9723851bc6f3bfea428958652aa6b5576de8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91ae972 Update code from upstream