$ git clone -n https://gitee.com/wenyuzifang/cups-pk-helper.git /var/lib/mock/dist-an23-build-485167-74348/root/chroot_tmpdir/scmroot/cups-pk-helper
Cloning into '/var/lib/mock/dist-an23-build-485167-74348/root/chroot_tmpdir/scmroot/cups-pk-helper'...
$ git fetch origin 9c1c3b477ce96034257a38535a69cde2e1b0dfd8:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/cups-pk-helper
 * [new ref]         9c1c3b477ce96034257a38535a69cde2e1b0dfd8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9c1c3b4 Update code from upstream