$ git clone -n https://gitee.com/wenyuzifang/cups.git /var/lib/mock/dist-an23-build-469821-74027/root/chroot_tmpdir/scmroot/cups
Cloning into '/var/lib/mock/dist-an23-build-469821-74027/root/chroot_tmpdir/scmroot/cups'...
$ git fetch origin da56e56ceafc31ec6c4620801c543d15bce1ab95:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/cups
 * [new ref]         da56e56ceafc31ec6c4620801c543d15bce1ab95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da56e56 Update code from upstream