$ git clone -n https://src.fedoraproject.org/rpms/ghc-libffi.git /var/lib/mock/f40-build-776068-128585/root/chroot_tmpdir/scmroot/ghc-libffi
Cloning into '/var/lib/mock/f40-build-776068-128585/root/chroot_tmpdir/scmroot/ghc-libffi'...
$ git fetch origin 678f325bc60f9abfc520b29056f85ef3e10d3990:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-libffi
 * [new ref]         678f325bc60f9abfc520b29056f85ef3e10d3990 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 678f325 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild