$ git clone -n https://src.fedoraproject.org/rpms/ghc-random.git /var/lib/mock/f40-build-776402-128831/root/chroot_tmpdir/scmroot/ghc-random
Cloning into '/var/lib/mock/f40-build-776402-128831/root/chroot_tmpdir/scmroot/ghc-random'...
$ git fetch origin cf81dd1853bc2e8530be0d2748fc83412160cddc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-random
 * [new ref]         cf81dd1853bc2e8530be0d2748fc83412160cddc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf81dd1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild