$ git clone -n https://src.fedoraproject.org/rpms/atop.git /var/lib/mock/f41-build-841494-161221/root/chroot_tmpdir/scmroot/atop
Cloning into '/var/lib/mock/f41-build-841494-161221/root/chroot_tmpdir/scmroot/atop'...
$ git fetch origin 34d28480d05969afdfb994f43c24ab525dbd8169:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/atop
 * [new ref]         34d28480d05969afdfb994f43c24ab525dbd8169 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34d2848 2.11.0