$ git clone -n https://github.com/xcp-ng-rpms/iputils.git /var/lib/mock/v8.3-u-pcoval2-10053-28693/root/chroot_tmpdir/scmroot/iputils
Cloning into '/var/lib/mock/v8.3-u-pcoval2-10053-28693/root/chroot_tmpdir/scmroot/iputils'...
$ git fetch origin 9da5056e3f49fb0bc46162dfdf94c3f1acf21851:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/iputils
 * [new ref]         9da5056e3f49fb0bc46162dfdf94c3f1acf21851 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9da5056 bump release for test build