$ git clone -n https://gitee.com/wency_cn/librsvg2.git /var/lib/mock/dist-an23-build-503601-74854/root/chroot_tmpdir/scmroot/librsvg2
Cloning into '/var/lib/mock/dist-an23-build-503601-74854/root/chroot_tmpdir/scmroot/librsvg2'...
$ git fetch origin 21f0512b068099f0ae5319ea91fb04c4a48c35bc:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/librsvg2
 * [new ref]         21f0512b068099f0ae5319ea91fb04c4a48c35bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21f0512 Update code from upstream