$ git clone -n https://src.fedoraproject.org/rpms/backupninja.git /var/lib/mock/f41-build-762769-13458/root/chroot_tmpdir/scmroot/backupninja
Cloning into '/var/lib/mock/f41-build-762769-13458/root/chroot_tmpdir/scmroot/backupninja'...
$ git fetch origin 98b3183bced9ca446584f02964c8bc038fc8658b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/backupninja
 * [new ref]         98b3183bced9ca446584f02964c8bc038fc8658b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98b3183 Eliminate use of obsolete %patchN syntax (#2283636)