$ git clone -n https://src.fedoraproject.org/rpms/osmo-fl2k.git /var/lib/mock/f40-build-795836-140332/root/chroot_tmpdir/scmroot/osmo-fl2k
Cloning into '/var/lib/mock/f40-build-795836-140332/root/chroot_tmpdir/scmroot/osmo-fl2k'...
$ git fetch origin 694e3a4c8ae7014ac5803c1a17047acbc873883f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osmo-fl2k
 * [new ref]         694e3a4c8ae7014ac5803c1a17047acbc873883f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 694e3a4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild