$ git clone -n https://gitee.com/rabbitali/librsvg2.git /var/lib/mock/dist-an23-build-467384-73998/root/chroot_tmpdir/scmroot/librsvg2
Cloning into '/var/lib/mock/dist-an23-build-467384-73998/root/chroot_tmpdir/scmroot/librsvg2'...
$ git fetch origin 266b2af5b787bcc2a636edd081fa13809ebe6f6a:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/librsvg2
 * [new ref]         266b2af5b787bcc2a636edd081fa13809ebe6f6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 266b2af Update code from upstream