$ git clone -n https://gitee.com/wenyuzifang/cups-pk-helper.git /var/lib/mock/dist-an23-build-469837-74027/root/chroot_tmpdir/scmroot/cups-pk-helper
Cloning into '/var/lib/mock/dist-an23-build-469837-74027/root/chroot_tmpdir/scmroot/cups-pk-helper'...
$ git fetch origin c2693e94b4246a955387ffe504daea1c31410205:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/cups-pk-helper
 * [new ref]         c2693e94b4246a955387ffe504daea1c31410205 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2693e9 Update code from upstream