$ git clone -n https://src.fedoraproject.org/rpms/osmo-fl2k.git /var/lib/mock/f42-build-885127-186517/root/chroot_tmpdir/scmroot/osmo-fl2k
Cloning into '/var/lib/mock/f42-build-885127-186517/root/chroot_tmpdir/scmroot/osmo-fl2k'...
$ git fetch origin b5c4a0b8eb9639a1defa234d6096efe399e400bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osmo-fl2k
 * [new ref]         b5c4a0b8eb9639a1defa234d6096efe399e400bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b5c4a0b Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild