$ git clone -n https://gitee.com/wenyuzifang/cups-pk-helper.git /var/lib/mock/dist-an23-build-469361-74027/root/chroot_tmpdir/scmroot/cups-pk-helper
Cloning into '/var/lib/mock/dist-an23-build-469361-74027/root/chroot_tmpdir/scmroot/cups-pk-helper'...
$ git fetch origin e05c10f264704cdb21aa92da41412eb7bcf0f4cb:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/cups-pk-helper
 * [new ref]         e05c10f264704cdb21aa92da41412eb7bcf0f4cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e05c10f Update code from upstream