$ git clone -n https://src.fedoraproject.org/rpms/netatalk.git /var/lib/mock/f42-build-58930478-6569294/root/chroot_tmpdir/scmroot/netatalk
Cloning into '/var/lib/mock/f42-build-58930478-6569294/root/chroot_tmpdir/scmroot/netatalk'...
$ git fetch origin 14a2c0f7fd05e6b30a2805bd5a1bbf1ffc0b3bdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/netatalk
 * [new ref]         14a2c0f7fd05e6b30a2805bd5a1bbf1ffc0b3bdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14a2c0f 4.2.1 release