$ git clone -n https://gitee.com/wenyuzifang/cups-pk-helper.git /var/lib/mock/dist-an23-build-480832-74252/root/chroot_tmpdir/scmroot/cups-pk-helper
Cloning into '/var/lib/mock/dist-an23-build-480832-74252/root/chroot_tmpdir/scmroot/cups-pk-helper'...
$ git fetch origin 953973d01c071168d61670d504ab8545544f1eb6:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/cups-pk-helper
 * [new ref]         953973d01c071168d61670d504ab8545544f1eb6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 953973d Update code from upstream