$ git clone -n https://src.fedoraproject.org/rpms/ghc9.8.git /var/lib/mock/f40-build-2421917-60586/root/chroot_tmpdir/scmroot/ghc9.8
Cloning into '/var/lib/mock/f40-build-2421917-60586/root/chroot_tmpdir/scmroot/ghc9.8'...
$ git fetch origin b289d395a7cbee5acb06e8783ea601429c7c1989:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc9.8
 * [new ref]         b289d395a7cbee5acb06e8783ea601429c7c1989 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b289d39 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild