$ git clone -n https://src.fedoraproject.org/rpms/prelude-lml-rules.git /var/lib/mock/f42-build-3406842-45143/root/chroot_tmpdir/scmroot/prelude-lml-rules
Cloning into '/var/lib/mock/f42-build-3406842-45143/root/chroot_tmpdir/scmroot/prelude-lml-rules'...
$ git fetch origin 84192b5ff70f30558ce77a0ad6f95d81b7235328:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/prelude-lml-rules
 * [new ref]         84192b5ff70f30558ce77a0ad6f95d81b7235328 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84192b5 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild