$ git clone -n https://gitee.com/wency_cn/librsvg2_1767162111.git /var/lib/mock/dist-an23-build-502853-74825/root/chroot_tmpdir/scmroot/librsvg2_1767162111
Cloning into '/var/lib/mock/dist-an23-build-502853-74825/root/chroot_tmpdir/scmroot/librsvg2_1767162111'...
$ git fetch origin ab4a75b1c0bc26db106500adfe8f0c33ad09da8b:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/librsvg2_1767162111
 * [new ref]         ab4a75b1c0bc26db106500adfe8f0c33ad09da8b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab4a75b Update code from upstream