$ git clone -n https://src.fedoraproject.org/rpms/ghc-constraints.git /var/lib/mock/f40-build-2286095-55702/root/chroot_tmpdir/scmroot/ghc-constraints
Cloning into '/var/lib/mock/f40-build-2286095-55702/root/chroot_tmpdir/scmroot/ghc-constraints'...
$ git fetch origin 8a678c86d96a03b8b28edbeb7af07d928b35a274:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-constraints
 * [new ref]         8a678c86d96a03b8b28edbeb7af07d928b35a274 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a678c8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild