$ git clone -n https://gitee.com/wenyuzifang/gpm.git /var/lib/mock/dist-an23-build-485258-74348/root/chroot_tmpdir/scmroot/gpm
Cloning into '/var/lib/mock/dist-an23-build-485258-74348/root/chroot_tmpdir/scmroot/gpm'...
$ git fetch origin b1b557aabf1d403567bf3a05ecad4d5d46a7e91a:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/gpm
 * [new ref]         b1b557aabf1d403567bf3a05ecad4d5d46a7e91a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1b557a Update code from upstream